gashsmasher Share definition Flag One who partakes in excessively aggressive sexual activities in and about the vaginal area (the gash). After a few cocktails the town gashsmasher went to town on some ladies in the VIP lounge. gashsmasher by UCLA_SUCKS(ie44-6) October 9, 2007 0 0 Get merch Get the gashsmasher mug. Buy Now — $32.95 See more merch