rheh Share definition Flag 1. Smtn ur boyfriend sends u when he actually means heh but is either just too stupid or drunk. 2. Half-horse for "no" 1. Gf: awww <3Bf: rhehGf: tf bitch 2. Horse 1: neighhhHorse 2: rheh rheh by dark_asylum.exe November 11, 2022 Get the rheh mug.