(aviation) A pipe on a VTOL aircraft that expels compressed air in order to stabilize the craft.

plural of puff pipe

Disappearing suddenly.

Alternative form of powder puff

(US, slang) Crazy, insane, irrational.

(slang, humorous, proscribed) To smoke marijuana.

A test that measures intraocular pressure (and hence glaucoma risk) by blowing a puff of air at the patient's cornea.

plural of air puff test

Third-person singular simple present indicative form of puff the magic dragon

To act arrogantly and resolutely.