mattstarrbate Share definition Flag 1. To touch oneself while fantasizing about Matt Starr. 2. To give Matt Starr a handjob. After his African Dance recital, I mattstarrbated all night long. mattstarrbate by littleonemolly January 2, 2011 0 0 Get merch Get the mattstarrbate mug. Buy Now — $32.95 See more merch