Lil Pump Says He Can Dunk a Basketball, TMZ Challenges Him to Prove It!

Lil Pump tells TMZ Sports he can dunk a basketball ... and TMZ Sports says PROVE IT, YOUNGBLOOD!!! But, before we get to the Great Lil Pump Dunk Challenge of 2019 ... let's provide some context. The "Harverd Dropout" rapper is featured in the…