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1.
A guy who drinks a lot to the point were he wobbles.

He's the type of guy who high fives everyone.

He's Awesome

He's also a ladies man!
Did you see how drunk Jesser was last night?
by KKBIRD February 23, 2011
 
2.
A common/fun nickname for anyone who has a first name of Jess in it. It means fun, outgoing, crazy and good friend.
Can be nicknamed Jessers if your name is Jess, Jesse, Jessica, etc.
by Jess22 March 28, 2007