Wanker Munch is an insult, meaning someone who enjoys munching (chewing) on a mans erect penis while he is masturbating.
Person 1. Oi, mate, your mums easy gash on the reg!
Person 2. What the heck are you on about, you wanker munch?
Person 2. What the heck are you on about, you wanker munch?
by MysteryPills March 30, 2010
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