Terribad

Terribad blends the words terrible and bad into a single, more-forceful adjective, used to describe something that is astonishingly awful. You might encounter this designation of inferior quality in text, chat, or forum messages.

For example, while discussing a new Mexican place, your friend Mike might say "their tacos were terribad; no flavor and they wrecked my stomach." This means Mike (and his stomach) really did not like the Mexican place's tacos.