While another person is in the process of squeezing out a
big ol' shit on your chest during coitus, the act of using a single
index finger to push said
nut log back into their ass. Used by normal people who have a problem with being shit on, or abnormal people who like to make their partner's shits more difficult.
That bitch was entirely too kinky for my tastes. She tried
to shit on my chest, so I pulled a good
old Russian Soldier on her. Needless to say, I won't be calling her back.