The ability of a Gay (or lesbian) person to turn another person gay
Gay person: Hey ur gay!
Str8 person: No im not!!
*Few years later*
Not-so str8 person: Hey... Im gay...
Gay person: I know
Not-so str8 person: How??
Gay person: A few years ago i ussed the Gay Gun on you! Now you can use it too!
Gay person: Hey your gay Str8 person: No im not
*few years later*
Not-so-str8 person:Hey im gay...
Gay person: I know
Not-so-str8 person: How?!?
Gay person: I used the ability of the Gay Gun to you! You have it too now.