Lump On
Lump On is a slang term used in betting to describe placing a large stake on a bet, usually because the bettor is confident in the outcome.
For example, if a bettor strongly believes a team will win, they might say, "I'm lumping on Team A at 1.80 odds", meaning they are placing a significant amount of money on that bet. This term is common amonghigh rollers and experienced bettors who are confident in their selections.