darn tootin' Definitions include: exclamation of agreement. toot; Definitions include: to flatulate; fart. toot-a-loo; Definitions include: good-bye. toot (one's) horn; Definitions include: to praise oneself. toot (one's) own horn; Definitions include: to praise one's self. toots; Definitions include: form of address for a female; chick.