Top definition
n. From "vanity" and "definition". An entry on Urban Dictionary, Wikipedia, or any editable website that only advertises a person, band, school, etc.
The name of your mother is not a legitimate entry, it is a vanidef.

Wikipedia is an encyclopedia, not a list of vanidefs.
by A_1_B_2_C_3_________________ September 30, 2006
Get the merch
Get the vanidef neck gaiter and mug.
Sep 9 Word of the Day
the thing that you don’t have when you’re phones percentage is over 20
phone: why don’t you go to sleep tommy it’s 2 in the morning?
tommy:why don’t you die you dumbazz
by lik_frls_dis.me February 12, 2020
Get the mug
Get a sleep mug for your barber James.