Top Definition
69ing and then trying to eat your partner whole before they eat you.
M: I heard Gunnar and Kate went to eleventh base last night

S: Oh my gosh, did they survive?

M: I think Gunnar did, but he's lost his legs, and they had to pump 20kilos of Kate out of his stomach.

by M&S Anti-Straight Police S&M March 02, 2009
5 Words related to Eleventh Base

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