Top definition
A girl who, in college, studies far too much when all her friends want to do is play halo.
"Nancy was being a real JTumm last night"
"Ya i know. Shes definately not invited to taco night anymore"
by biologysucks. September 13, 2009
Get the merch
Get the JTumm neck gaiter and mug.
Apr 21 Word of the Day
I've been jabbed
by Francesco II March 20, 2021
Get the mug
Get a jabbed mug for your dad Jerry.