Double Laugh syndrome is defined as laughing at ones own joke while currently laughing yourself. Causing an intense tingling sensation in the nether region as well as confusion from Australiens.
Telling someone that the person laughing behind you is actually you, telling them it's Double Laugh Syndrome, and having them believe it.
by Gryphus_1 May 5, 2014
Get the Double Laugh Syndromemug.