When someone weighs them self n the morning before eating so they think they weigh lighter than they are the rest of the day. Usually done to make oneself feel better about their body.
Stacy: *weighs herself* OMG! I'm losing so much weight!
Jessie: Girl, that's just your morning weight.
Jessie: Girl, that's just your morning weight.
by Spam Happy August 29, 2009