NY Times Crossword
September 14, 2017
John Guzzetta

Each of the following phrases illustrates a common expression. Can you determine what it is?

TOOT HIS OWN HORN
DO UNTO OTHERS
SPREAD TOO THIN

Answer:

The illustrated expression is GAP TOOTHED, in that the word TOOTH can be found in each phrase in consecutive left-to-right order, but with a space somewhere in the sequence.