Wiktionary
vb. 1 (context idiomatic transitive English) To alert or inform someone, especially confidentially. 2 (context basketball English) To put the ball in play by throwing it up between two opponents. 3 (context transitive obsolete English) To pour out (liquor).
WordNet
v. give insider information or advise to; "He tipped off the police about the terrorist plot" [syn: tip]
Wikipedia
Tip Off is a basketball game released for the Amiga and Atari. It was developed in 1991 by Anco Software
A Gameboy version was developed by Enigma Variations and published by Imagineer in Europe. An unreleased NES version was also in development.
Usage examples of "tip off".
That would tip off Satan, the Satan of this time, and there could be all manner of trouble.
I volunteered to stay on and follow you and your father on the campaign because I knew that otherwise Salvador would put someone else in my place, and he would eventually figure out your plan, and tip off the bad guys.
A good tip off that this may be your problem is a file name that ends with “.
If he didn't have Valmont killed, he'd at least tip off the police to her.
Did someone perhaps tip off Campbell to the Weird Science story after the fact?