When someone swallows and chokes so that the semen is inhaled into the lungs. This would cause the "sticky lung" effect.

Noun: a friend who is usually only called upon by a friend when a more primary/prominent friend is unavailable.

Taken from the term “second string” in an athletic competition situation. In football, if the star quarterback gets injured during a play, the second string is called off the bench to replace him/her. A “Second String Friend” is essentially benched until needed, if ever.

Synonyms: Plan B, Second Choice, Secondary Friend, Benched Until Needed

a male inserts his phallice too far down the throat of a female, thus when ejaculation occurs, the seamen enters the bronchi and the lungs...thus getting "Sticky Liung!"