oisin

oisin can be used to describe someone who is ill-mannered or ignorant of other peoples feelings.
it can also be used to describe how someone acts around others. e.g. lying, deceitful

Another way to call someone in a normal conversation is a snake or a liar.

That guy is such an oisin.

by Izaya.H April 21, 2018

Oisin

A massive faggot who only talks about himself, his love for dick, and how his name means Little Deer.

"Oisin is a faggot"

by OisinIsAFaggot February 15, 2018

Oisin

An annoying Irish ginger cunt who everyone hates

'Oisins in my group'
'oh poor you'

by Wagwanwhatusauingmyg November 20, 2019

Oisin Diamond

someone who choses girl over tokes and an all round simp

Are you oisin diamonding right now thas so freaky

by Simpy D February 27, 2022

Oisin Fleming

Gay prick who thinks he proper hard,lives in the shadow of his brother

Oisin fleming is fuckin faggot

by U gay December 29, 2018

Dirty oisin

When you stroke you're pet shrimp up and down ur rectum until the shrimp crawls deep into you're pee pee hole and lays eggs

I feel itchy after going for a swim must of caught a nasty dirty oisin

by Big boy fionn May 4, 2020

Dont be an Oisin

The definition is a phrase relating too an annoying gay boy who dosent participate in gang activities such as drinking and entering private property.

Shut up Dean dont be an Oisin

by paul kelly is god December 24, 2009