Unusual expressions color the tapestry of colloquial English, exhibiting an array of socio-cultural subtleties. The versatility of the English language is especially displayed in its various dialects. Brushing up on unusual expressions from different English dialects not only helps improve our understanding of the language but also enriches our cultural insight.

‘All mouth and no trousers’ is a peculiar expression often used in Northern England, meaning someone who talks a big game without backing up their words with actions. This saying reportedly derives from the idea of a well-dressed, money-spending fool who talks a lot about what he’ll do but never gets into actual action.

Shifting focus to Cornwall, you might hear the strange expression ‘dreckly,’ a Cornish term. When someone tells you they’ll do something ‘dreckly,’ it doesn’t mean ‘directly’ or immediately, but rather the opposite. Dreckly, indicating an unspecified time, is used to imply one will do something, but not right away, reflecting the laid-back Cornish culture.

Moving to Hiberno-English, the dialect of Ireland, you might stumble upon ‘acting the maggot.’ This phrase may sound unusual, but it’s a widespread colloquialism in Ireland, used to describe someone who’s up to mischief or acting foolishly. The term ‘maggot’ might have evolved from the Irish word ‘mada,’ meaning dog, and implies a sense of mischievous playfulness.

Shift over to Scotland, and you may hear the phrase ‘glaikit,’ a primarily Scottish term to describe someone as stupid or foolish. There’s a kind of onomatopoeic value to the word ‘glaikit’ that could link its meaning with someone having a vacant or silly expression.

Hop over to Australia, and you might encounter ‘to have a blue.’ Although this sounds like a reference to feeling down or sad, in Australian English, it means to have a fight or a dispute. The origins of this phrase are unclear, but its usage is widespread, even appearing in movies and songs.

In the Southern United States dialect, the phrase ‘might could’ stands out as an unusual term. “Might could” is a double modal verb, a grammatical phenomenon unique to Southern American English. Its interpretation is, ‘might be able to,’ or ‘possibly can.’

Driving into Canada, the Newfoundland dialect offers the quirky phrase ‘you’re some shockin’ jokey.’ It does not mean you’re shockingly humorous. Instead, it’s a phrase used when someone is behaving foolishly or fails to meet expectations.

Up to North-Eastern England, Geordie English presents ‘howay.’ It’s not a question of ‘how’ or ‘why,’ but a versatile term used to either encourage someone, express disbelief, or invite someone to come along. It likely developed from the phrases, ‘how away’ or ‘haway,’ used in the region’s industrial heritage to instruct horses to start moving.

Heading over to New Zealand, ‘tiki tour’ might seem like a cultural journey to Māori sites, but in Kiwi slang, it means taking the scenic route or a longer, more meandering path than necessary.

In Lancashire, England, the term ‘while’ takes on an unexpected twist. The phrase ‘I’ll see you on Tuesday while seven’ doesn’t mean ‘see you at seven.’ Instead, it means ‘I’ll see you before seven.’ ‘While’ in this case is used to signify ‘until,’ leading to some interesting confusion in scheduling events!

Plunge southwards into Caribbean English, ‘soon come’ is a common phrase. Even though you’d naturally assume it means someone or something will arrive shortly, it’s more an assurance of eventual arrival, underscoring the relaxed island attitudes towards timekeeping.

Finally, in Cape Flats English in South Africa, the term ‘gatvol’ is unique. Gatvol, derived from Afrikaans, is used when someone has had enough or is fed up. It brilliantly encapsulates a multicultural flavour, illustrating English language’s adaptability and global reach.

Unusual dialectal phrases contribute to the rich diversity of colloquial English. They propose a fascinating cross-section of society, unveiling intriguing threads of local culture, regional history, and social attitudes. Understanding those unusual expressions offers a robust, fuller grasp of English – not just as a language but also as a colorful expression of diverse communities and cultures.