eavesturbate 

v.: to masturbate while eavesdropping on another person or persons having sex. (A fusion of: "eavesdrop", Eng., to listen secretly upon another; and "masturbate", Eng., to pleasure oneself sexually).

I'm pretty sure my creepy roommate eavesturbates on me and Zelda when we're fucking.

eavesturbate by Amos the Puppyfucker July 23, 2010

Evapsturbate

When you jack off so hard and a such high speeds that the heat generated form it renders semen into a gas.

I just evapsturbated until immense pain happened.

Evapsturbate by Yifflord March 26, 2016