Someone that when playing a game and loosing always suggest switching to some esoteric game that they only know the rules of.
"This game is nice, but I know a better game. Lets try to play (unknown game) instead. It's not hard, I'll explain the rules!"
"Come on, you do this every time you are loosing. Let's stick with the game we are playing. Don't be such a Sesh-head!"
"Come on, you do this every time you are loosing. Let's stick with the game we are playing. Don't be such a Sesh-head!"
by SomeoneFromPortsmouth December 5, 2017

A version of a person called Grace, a version in which Grace goes mad. Basically, Grace has seshed to hard at this point and she has become what one would call, uncontrollable. She has been seshing on the voddie for too long and needs to be stopped. Sesh Head Grace is too powerful.
by Greacy Grace the Third November 28, 2018

by travdawg May 21, 2011

When white supremacists who deal in narcotics get together to consume cannabis products. Interrupting the sesh usually results in the individual being rolled into an opp pack.
by WhiteTrappa240 May 20, 2022

The "sesh god" is a particular individual, usually in university or just moved out but still living on daddy's money, who goes out on the seshmost nights of the week or every night if you are a sesh lord and party's their arse off like the sun isn't going to come up.
by Skrrr pop pop December 14, 2017

by daddy fuck nr June 2, 2021

"oi wanna sesh after skewel"
by BigChungus14HvH April 11, 2021
