Betray a comrade by giving information, as in He ratted on his best friend to the police. [Slang; early 1900s]
Words nearby rat on
How to use rat on in a sentence
Just the hard-on before you shoot unarmed members of the public.'Babylon' Review: The Dumb Lives of Trigger-Happy Cops|Melissa Leon|January 9, 2015|DAILY BEAST
Three on-the-record stories from a family: a mother and her daughters who came from Phoenix.I Tried to Warn You About Sleazy Billionaire Jeffrey Epstein in 2003|Vicky Ward|January 7, 2015|DAILY BEAST
You just travel light with carry-on luggage, go to cities that you love, and get to hang out with all your friends.
It was a brick wall that we turned into the on-ramp of a highway.
Could the (thus far) timid trembling give way to a full-on, grand mal seizure?26 Earthquakes Later, Fracking’s Smoking Gun Is in Texas|James Joiner|January 7, 2015|DAILY BEAST
Next morning Judy shouted that there was a rat in the nursery, and thus he forgot to tell her the wonderful news.
He had repeated till he was thrice weary the statement that "the Cat lay on the Mat and the Rat came in."
I drew back from the rim of Writing-On-the-Stone, that set of whispered phrases echoing in my ears.Raw Gold|Bertrand W. Sinclair
Growling horribly, the enraged brute seized poor Pearson and shook him as a terrier dog shakes a rat.Hunting the Lions|R.M. Ballantyne
I was here a little while ago and nobody answered my knock, though I could hear that typewriter going rat, tat, tat all the time.The Girls of Central High on the Stage|Gertrude W. Morrison