Top Definition
The last few pieces of popcorn at the bottom of the bowl that sucks up all the buttery goodness.
Jess: Are you done with the popcorn?

Trav: Are you not aware of the butter sponges!

Jess: Sorry I forgot.

Trav: No butter sponges for you!
#buttersponge #butter #popcorn #sponge #buttursponges
by h8memucho November 08, 2011
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