(noun) The annoying effeminate giggle, titter or laugh occasionally produced my male
homosexuals. This obnoxious noise is known to be especially painful to the ears of heterosexual males, but also is unpleasant to other homosexuals as it indicates someone trying to attract
unnecessary attention to themselves. It is believed to have originated in humans as both a mating call for homosexuals, and a warning noise for
heterosexuals.
Note that use of this term is not meant to be automatically disparaging against homosexuals, but rather against the terrible noise that merely happens to be made only by homosexuals, and then only by some individuals.