When you say 'double down', I think of 'Rainman'. 'Go Champ' is what they say to the new National Flattrack (motorcycle) racing champ, Bryan Smith. Tilde is some Randy D stuff.
Double down and go, champ appear to be neat inroads into people establishing a trademark for themselves. Tildes, though? Come on, please be serious. Only a neurotic hack with a myriad of "issues"would lean on such a crutch. If you see anyone like that hanging around here, please file an immediate report.