When you have Bloc Party playing in one ear and The Kooks in the other.
"Fucks sake! I'm caught in a Wank Sandwich here!"
by John in Fleet October 14, 2008
When two females are 69ing (licking each other out at the same time) each other and a male ejaculates in between them.
"I'm well going to wanksandwich those lesbos" Horney Fat Guy
by Cockmaster69 June 05, 2009