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on the sly 

To be on the sly, the active of sly. You can do something on the sly, maybe stealing something funny and legendary, like mine and Jimbo's road bollard. You could also have 'slying it'
"We took that bollard on the sly"
"Tonight we're slying it/on the sly"
"Come on lads, here we go, on the sly on the sly"
on the sly by Ybot December 28, 2005

macking on the sly 

Covert flirting between two people. Because they have to keep their true feelings for each other secret, for whatever reason (i.e. they work together, one is married, etc.).
"Those two can't seem to stand each other! They're always fighting over something!"

"Wrong, man. It's all a front they put up. They're actually macking on the sly."
macking on the sly by D. Gould March 8, 2006

Susan on the Sly 

A secondary girlfriend, one that is around constantly and annoys you and your personal friends.
Heather - Hey can I have your boyfriends friends phone number?

Girlfriend - No, he says you are a Susan on the Sly

sex on the sly

Cheating or trying to cheat when you have a spouse or significant other. Those looking for sex on the sly are liars and cheaters.
Nancy: Did you hear? Monty's lookin' for some sex on the sly. Jack saw him hit on a girl at the club.

Alice: You mean Monty, Sally's husband?!

Nancy: Yeah, can you believe it? He seemed so sweet and caring to her. Go figure.

Alice: Uh huh, another cheater.
sex on the sly by mad megawoman August 6, 2011

bang a you-ee 

of Massachusetts orig. "to make a u-turn"
hey, we missed the bar, bang a you-ee
Word of the Day on July 19, 2026
The word 'flag' as pronounced by people with thick Belfast accents. The term is a perfect encapsulation of the disproportionate and overblown reaction to the removal of the Union Jack (as in 'de fleg') from above City Hall in Belfast. Where previously it had flown for 365 days per year, it is now flown on 17 designated days of the year - in line with many other British cities.

The event caused a portion of the Protestant community ('fleggers') to make international pricks of themselves as they proceeded to wreck the fucking place, claiming it was another erosion of a 'British' identity they perceive to have been under attack since the horrifying spectre of equality reared its head in Northern Ireland.

The word 'fleg' - and indeed 'fleggers' - fittingly describes a section of humanity unconcerned with knowledge, reality or the vagaries of the English language. Like America's tea-baggers they are ruled by instinct, fear and paranoia with a side dish of rampant bigotry and startling ignorance of the world around them.
"Wat de fuck like! The taigs got de fleg took down! Let's wreck de fuckin place! No surrender!"

"De fleg has been took down! Before ye know it there'll be a united Ireland! Attack Short Strand! God Save The Queen!"
Fleg by OnionFleg August 9, 2013
Word of the Day on July 18, 2026