1. The act of trying to make love (usually unsuccessfully) to every women at the party.

2. Ejaculatin' all around the room.
1.

Gloria: Man, you shoulda seen Tyrone loose juicin' every girl at that party! 'Still came out dick-dry!

Shanay-Ain't that the truth! Holla!

2.

Man, Johnny Loose-Juiced all over my room! Dang it!
Get the loose juicin' mug.