The unpleasant sticky residue found on one's lips in the morning, made of dried saliva. Often ends up on the back of ones hand after wiping mouth.
"I only had 8 pints last night, but the lipscum was off the charts this morning"
by markus_sparkus September 05, 2007
The Urban Dictionary Mug
One side has the word, one side has the definition. Microwave and dishwasher safe. Lotsa space for your liquids.Buy the mug