terramack, Terra , meaning earth and Mack , in reference to Mack trucks. Terra mack was adopted as a description because it was easier and shorter to say than "hot tar and gravel"
gang-bang sexual position in which the female can take in up to five schlongs with her two hands, mouth, anus, and vagina by bouncing from a squatting position and waving her arms back and forth.
kimmie: wow, i sure took in a lot of cocks last night!
joshua: oh i heard you did the terradactyl! shame i wasn't there to partake!