The peculiar noise made by ones mouth when going down on your partner's junk. This occurs when the suction becomes too strong.
by Elantragirl May 30, 2009
Get the mouthfartmug. Nikki: *trumpet noise with mouth*
Caroline: Jesus, that was a mouthfart.
Nikki: (pauses) *trumpet noise again*
Caroline: Jesus, that was a mouthfart.
Nikki: (pauses) *trumpet noise again*
by Ms. Ruff March 4, 2004
Get the mouthfartmug.