When performing oral sex on a female, the performer flattens their mouth around the vaginal opening and blows, resulting in an entertaining release of air from said opening.
Boy, the room sure did smell after I gave Jenny an Alabama Air Horn.
by ThanagrossnGush May 18, 2011
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During an argument any statement or comment that leaves the other person stunned or confused.

2. When EPIC FAIL is greater than EPIC WIN.
Bob: I'm telling you Star Trek is better!

John: No your wrong Star Wars is waay better.

James: You're both wrong Stargate Atlantis was the best Sci-Fi show.

Bob,John: DON"T USE AIR HORN DEFENSE US!
by Big Ninja JIm October 30, 2011
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