Daniel Jones kept the momentum going after throwing 5 TDs on Sunday ... teaming up with Eli Manning for some postgame flip cup at a local bar!!
The Giants rookie made his return to the field after missing a few games due to injury ... and celebrated the big OT win by throwing on his favorite dress shirt and hitting up Green Rock Tap & Grill in Hoboken, NJ.
Danny Dimes, Eli, Saquon Barkley and Reggie White Jr. were all in attendance .