Top definition
An awesome, room shaking, sometimes life changing session of male masturbation
John "Jeremy why do you look like you've run a marathon this morning when you've only just got out of bed?"

Jeremy "I have a stinking hangover so thought I'd treat myself to an epiwank"
by Wansky May 07, 2011
Get the mug
Get a Epiwank mug for your daughter Zora.