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 piece of poop that is suspiciously green. Bonus points if its fades into the tip, like Mister Grinch's head.
Someone left a Mist..