Intubate

[Justin Bieber]

Insert a tube into (a person or a body part, especially the trachea for ventilation)

[Zipporah Schumaker]

While someone is sucking [your cock], you let go of a massive, stinky fart. The [cock-sucker] is then forced to try to [breathe] through their mouth (therefore through your cock), rather than their nose.

[Dianne]

to put a tube into a hollow organ or tube-shaped structure in the body in order to keep it open, remove liquid for testing, or give a drug: