Balls in a Jar Share definition Flag to be completely and utterly whipped by the female girlfriend. Spencer, are your balls in a jar on your girlfriends desk? Why don't you get them out and chug that there beer. Balls in a Jar by Cac2490 August 5, 2012 0 0 Get merch Get the Balls in a Jar mug. Buy Now — $32.95 See more merch