my wife will be waiting up for me, i better grab a 7-11 shower so she doesn't find out what i was up to
the act of washing your penis (genitals) in a restroom sink after having sex, in an effort to hide the fact you cheated before you go home
"my wife will be waiting up for me, i better grab a 7-11 shower so she doesn't find out what i was up to" What is the definition of "7-11 shower"?