Tip Test Share definition Flag When a guy inserts just the tip of his penis into an unsuspecting girls vagina when they are making out. He is testing her to see if she is DTF. Last night I gave Jenny the tip test when we were making out, she grabbed my ass and pulled me in! Tip Test by zurgg April 15, 2011 0 0 Get merch Get the Tip Test mug. Buy Now — $32.95 See more merch