1 definition by meson537

Top Definition
verb To Flonk: To stimulate the male sexual organ. Especially auto-stimulation in a noisy manner. This word definitely has onomatopoetic characteristics. Synonym: Masturbate.
Did you spend all night flonking it to softcore porn?

Ivar flonks constantly.

The internet results in highly flonktastic behavior on the part of the male population.
by meson537 February 14, 2008
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