pwn-a-saurus-rex Share definition Flag a person who pwns at life "dude jimmy pwned me in a 1 on 1 CS uber duel last night!"yeah he is such a pwn-a-saurus-rex!!!" pwn-a-saurus-rex by evro_hax_pwn&coulter_1337sauce June 18, 2009 0 0 Get merch Get the pwn-a-saurus-rex mug. Buy Now — $32.95 See more merch