To black out due to hard partying resulting in temporary (or permanent) mind loss. Originally derived from someone licking the spoon used to mix chemicals that make up window pane etc... but can be used when refering to a long and hard night of drinking.
Wow, it looks like Neil is gonna lick the spoon tonight.
The chain reaction caused by B Rab licking the floor of his 11th grade Chemistry classroom
"Have you licked the floor yet?"
"Yes, I made out with Matt who made out with Alyssa who made out with Bobby who made out with Taylor who made out with B Rab who was the one to lick the floor."