Bacon Smile 

After a reasonable amount of intercourse, the penis is removed from the vagina and slapped across the female's mouth, leaving residual sexual fluids, both male and female. The result is a kind of greasy mouth, comparable to if someone were to slap bacon on their lips.

John: I heard you got post-sex head last night, right on!
Adam: No, i just gave her a bacon smile.

Bacon Smile by Goodlum December 6, 2010

Horizontal Bacon Smile

The roughest toughest penis to ever grace the fields of Madagascar. People dropped in fear at the site of the Horizontal Bacon Smile drinking tea or knitting mugs to drink from. He was one bad ass light-skinned lincoln log

hide the perishables here come the horizontal bacon smile

Horizontal Bacon Smile by Miles Labia December 15, 2003

Sideways Bacon Smile 

Another term for a vagina, based on one's resemblance to two pieces of bacon arranged as to form a shape representative of a smile (turned sideways, no less.)

His womb ferret smashed into her sideways bacon smile.

Sideways Bacon Smile by The Womb Ferret July 26, 2006