Little second grade kids usings drugs, pcp, lsd, weed, etc
Jennie is a "jelly Brain"
by nicholasb November 04, 2008
when young kids do drugs
Jennie B. is a jelly brain
by Nickblackwood October 25, 2008
When someone drinks alcohol for too long of a period in their life. (Their brain turns to jelly, i.e.. jelly brain)
Boy, she sure let her brain turn to jelly! i.e.. Jelly Brain.
by Doctor, Doctor December 01, 2015