(n)A large female mammal that walks upright on its hind legs in clothing that is uncoftably to reavealing and claims to be sexy. Also see Woozle.
The Florida malls are overflowing with hefalumps, someone should tell the hunting comision.
by LORD J June 21, 2005
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a word originated 4rm various winnie the pooh (yay) stories. Also very useful in describing that fat bitch that ust took your seat on the bus!
Jimboberina: hey boots y u standing up ? sit down its a bumpy bus ride Wooooo!

Boots: CRASH BANG W***OP(as she f***s down the bus stairs) Damn you heff***lummmpppppp!!! GRRRR! -

Fat seat stealing bus bitch is unaware this term is adressed to her..

Heffalump: ??????
by jolola June 12, 2005
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a fat, minging woman with some big ass and big boobs.
Bessie you hefalump!!! Vicky you're a hefalump.
by Nick Lobanov May 28, 2004
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something or someone that is extremely large.
That man is 300 lbs. He is a hefalump!
by Juskidding November 22, 2009
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When one has the intension to go out and have sex with a fat chick or Hefalump.
He dude we been having bad luck with the chicks lets go Hefalump slaying.
by Derek "nasty boy" Miller October 19, 2007
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