Top Definition
The after-effects of a long wanking session that results in the forementioned wanker falling into a wank-induced coma...leading to total loss of memory of the wanking.
Her: So you just jerked it all night?

Him: I don't know, I must have jerknesia.
ayon kay Project TB ika-22 ng Setyembre, 2009
5 Words related to jerknesia

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