Jabari Parker proved he's a serious threat as a shooter -- at least when it comes to beer pong.
The Milwaukee Bucks star hit up a house party near the Milwaukee School of Engineering on Saturday night -- and partied with a bunch of the students.
But the highlight of the evening ... when Parker was asked to join in on the B.P. game -- and crushed shot after shot after shot!
Sources at the party tell TMZ Sports Parker was super nice to everyone and people were stoked he was there .