1. past tense of foul; made dirty or contaminated
2. past tense of foul; became tangled or blocked
3. past tense of foul; committed a foul in sports
Usage: sports

Examples

• The oil spill fouled the coastline for miles.
• The fishing line fouled around the propeller.
• She fouled the opposing player during the basketball game.
• The anchor chain fouled on the rocks below.
• Industrial waste fouled the river water.
• He fouled out of the game after his fifth penalty.