Top definition
Irish term that a woman (or man in special cases) says when they are having sex with a man named Brian.
Woman/Man: Harder!
Brian: UMPH!
Woman/Man: O Brian!(Irish accent)
by asdklfj! November 08, 2008
Get the mug
Get a O Brian mug for your coworker Zora.
2
A person who acts to be harsh and hardcore but is real wrecked and vulnerable on the inside yet still tries to make everyone happy arou d despite who may have done him wrong
My teacher looked at me and said im just like obrian
by Kìng great August 03, 2018
Get the mug
Get a obrian mug for your cat Rihanna.