What is River Pump?
1.
The act, or effect, of exercising (push ups etc.) just before embarking on an intertube trip down the river. This temporarily enlarges your muscles, with the desired result being a more impressive appearance to the opposite sex.
Instead of tying up the raft he was on the bank working on his river pump.
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Random Words:
1.
A synonymn for Anal virginity.
David took Marianne's boston virginity when he slipped it into her rectum.
See anal sex, popping t..