1 definition by Brossef!101

Top Definition
Someone who is really dumbwitted, imbissolic and a wanna be cool cat.
May be used as a derogatory term.
After person 2 does something very idiotic --

Person 1 : Fuck your'e a dilby!

Person 2 : Stfu!
by Brossef!101 September 02, 2010
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