The act of purposely wasting/spilling alcohol that someone else paid for because you didn’t feel like drinking anymore.
“Hey Mouse, you better not Little bitch Jeff that Four Loko we bought for you earlier.”
“I paid for this Gin so I can Little bitch Jeff it if I want.”
Basically a much worse way to call someone a Midget, UmpaLumpa, Troll, Shrimp, Hobbit, Dwarf, KeeblerElf Any individual that is height impaired
He's just angry cause he has to spend his life being a Little Jeff!