High and low Definition 1 of 3Pro Tip 1/3Search Intensively Used when someone has looked everywhere they can think of. He searched high and low for a birthday gift for his wife. Pro Tip 2/3Missing Items Often used when looking for lost or misplaced items. Julia looked high and low for her glasses. Pro Tip 3/3Possible Efforts Expresses that all possible efforts have been made in doing something. They went high and low to find the best deal.