Top definition
the rump of a pirtecular individual from the maritime town of pictou N.S. this is a specaily large and well shaped rump normally found only in the heart of american pop culture. these big 40's tend to be of a juicy and tender variety, A treat to hold in sight anyday of the pictounian week!
what a nice big 40

Man I'd smack that big 40 right now!

fuck i love her big 40

by Katie Hot Ass Campbell May 03, 2008
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