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Specifically a penis, but more generally, the notion thereof.

Wanda and Trixie slapped on enough makeup to alter the stock price of Max Factor and went out to the clubs, trolling for zipper trout.

When Trixie finally caught up with Wanda, she was locked in a toilet stall in the Men's, apparently bobbing for toilet trout.

See also toilet trout
by Max Radcliffe June 12, 2006
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