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.
by Project TB September 22, 2009
Get the mug
Get a jerknesia mug for your buddy Trump.