Definition of touch off
1 : to describe or characterize with precision
2a : to cause to explode by or as if by touching with fireb : to provoke or initiate with sudden intensity the verdict touched off local riots
Examples of touch off in a sentence
his obscene comment touched off a heated debate about the need for censorship on live broadcasts
First Known Use of touch off
Seen and Heard
What made you want to look up touch off? Please tell us where you read or heard it (including the quote, if possible).