deep penetration 

A phrase used by the porn(adult entertainment) industry to describe the male penis fully entering the woman's vagina or anus during sexual intercourse. Very interesting to watch over and over again ;^B.

Damn! That bitch got some serious deep penetration by black dick!

deep penetration by urban pervert February 8, 2003

deep tongue penetration 

A procedure performed by tongues of dimensions 5 inches or longer where the G-spot is stimulated until the point of orgasm

It can also be a term used for food.

"I just finished performing deep tongue penetration on my icecream and now my tongue is numb ," squealed Lucy.

deep tongue penetration by Lester the molester6969 April 8, 2018