1 definition by an experienced user
When you wake up the morning after having unprotected anal sex and find 'leakage'. Morning mayo happens when a person is too tired or lazy to go clean up after anal sex.
Person 1 : Morning Babe, I had fun last night.
Person 2 : Me too.
Person 1 : Why is the bed wet?
Person 2 : Oh, I have morning mayo..
Person 2 : Me too.
Person 1 : Why is the bed wet?
Person 2 : Oh, I have morning mayo..
by an experienced user October 26, 2015