fouled (Adjective) — Made dirty or foul. ex. "breathing air fouled and darkened with factory soot"
fouled (Adjective) — (nautical) not having freedom of motion due to collision or entanglement; entangled. ex. "with its sails fouled"
fouled (Verb) — (baseball) hit a foul ball.
fouled (Verb) — Make impure in a bad way; make something harmful, especially by the addition of some unwanted substance. ex. "The industrial wastes fouled the lake"
fouled (Verb) — Become or cause to become obstructed. ex. "The leaves foul our drains in the Fall"
fouled (Verb) — Commit a foul; break the rules.
fouled (Verb) — Spoil Spot, stain, or pollute. ex. "The townspeople fouled the river by emptying raw sewage into it"
fouled (Verb) — Make unclean. ex. "foul the water"
fouled (Verb) — Become soiled and dirty.