What is Justins?
1.
Noun: Sweaty armpits.
It is related to Justin Timberlake's single; 'Cry Me A River'. River being associated with a sweaty armpit.
Person 1: Dude look at Kevin's Justins!
Person 2: That's bad, man. Shall I give him my lynx?
Person 1: Yeah you'd better. For his sake!
See