The sound made when a "mojado" is thumped over the head while attempting to flee the patrullero's!
Dave Robison used to date a tonk from H-18 for approximately 6 months, until Senor Russell apprehended him with six bags of flour tortilla's and 14 water jugs under his front porch. BAD DAVE!
by Goose Green February 27, 2005
To tonk a girl using your penis means you stand in front of her and swinging you hips smack her in the face with your penis, which makes a "tonk" sound.
Chris wanted a sandwich and Jane was reading, so he stood over her tonking her in the face with his penis til she got irritated and gave in and made him one.
by Orcoangel May 14, 2007