definition of the session . a true embodiment of a bag of cans. when you've had a tough day you can rely on an Oisin Brennan to pull you out of the gutter.

also loves bag
"man that guy is such an Oisin Brennan he loves the session and has an average sized penis "
by olivebranch5 February 16, 2022
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Oisin flood is known to be the biggest fridge,bender and sometimes gives hand jobs.He usually goes overing the top.He heats up his milk.#fuckingweirdo
"Oh look that oisin flood looks nice it suits the kitchen"
by Alexstark2005 December 6, 2019
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Usually, a guy who no girl likes so he tries to get with girls who are younger than him. He tries to pick on kids younger than him to prove his dominance, but will get beat the shit out of by them. Oisin is the jealous type who will not stop until someone he likes breaks up with their boyfriend/girlfriend. If you know an Oisin Kennedy and you’re a girl, i would suggest running away, since he is known for his noncery.
Oisin Kennedy tries to fight my 6 year old brother cos he likes his girlfriend. He got knocked out though.
by Fat Chode 101 October 16, 2019
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A guy that likes trains has a handful of friends gay possibly a furry made a weird name for himself and has no will to live
Eyy look, 'ers Oisin (awsheen) the' ard lad (sarcastically)
by unfulfilledtoaster24 November 4, 2019
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a word 2 describe a black slang word.
(yo oisin hayes want to cum 2 d crib?)
by joe bloggs woz ere December 16, 2007
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