Terbaai 

A person you should hide your girlfriend from because he might pipe.

Damn terbaai stole my girl

Terbaai by Geytwhhsgskah November 24, 2021

smash-terbating 

mastering so rough and profusely that your penis or vagina chafe and/or bleed due to friction.

Tom: dude I was masturbateing so much last night that it turned into smash-terbating.

smash-terbating by killfacejj July 3, 2011