3.Also,hot′dog`.Slang.a person who hot-dogs; hot-dogger. interj. 4.(used to express great joy or delight.) [1895–1900,Amer.] hot′-dog` orhot′dog`, v.-dogged, -dog•ging, adj.Slang.v.i. 1.to perform intricate maneuvers in a sport, esp. surfing or skiing. ...