TCU didn't adopt a signature signal until the early 1980s, when head cheerleader Chad Schrotel invented the curled index-and-middle-finger salute. Some fans say the flexed knuckles represent the horns of their mascot, SuperFrog. Others suggest its shape comes from the motion used to playfully jab -- or "frog" -- a classmate. Either way, the hand sign has become an even bigger hit in Fort Worth since TCU has been to five straight bowls, including the Fiesta Bowl last season. Now that's something to jab about.