make one's mouth water

make one's mouth water  {v. phr.}

1. To look or smell very good; make you want very much to eat or drink something you see or smell.

The pies in the store window made Dan's mouth water.

The picture of the ice cream soda made his mouth water.

2. To be attractive; make you want to have something very much.

Judy collects folk song records, and the records in the store window made her mouth water.

Compare: LICK ONE'S CHOPS.