2 definitions by maddog219
A boi-o Is the condescending and/or patronizing way you refer to a Male or Boy when they're upto mischief, strictly to assert dominance in a passive aggressive tone.
Senior Male: "OI YOU GET BACK HERE WITH THAT LADIES PURSE BOI-O!"
Dweeb Teenager: "Get fucked ya cunt"
Dweeb Teenager: "Get fucked ya cunt"
by maddog219 September 3, 2019
Someone who generally fails at life for example, smoke weed all day or plays xbox all day without a job.
daniel - hey scott what have you been doing since you left school?
Scott - urgh what do you think? just been playing xbox 24/7
daniel - you're such a fail cunt
Scott - urgh what do you think? just been playing xbox 24/7
daniel - you're such a fail cunt
by maddog219 March 26, 2009