1. a wrinkle, fold, or crease in fabric or material
2. a situation involving argument or fighting
Usage: informal
3. a loose scrum formed around a player with the ball
Usage: rugby

1. to make wrinkles or folds in something
2. to become wrinkled or creased

Examples

• There was a ruck in the carpet where someone had tripped.
• She smoothed out the ruck in her dress before the interview.
• The players formed a ruck around the ball.
• A ruck broke out between the two groups of fans.
• Don’t ruck up the bedsheets when you get out.
• The fabric will ruck if you don’t iron it properly.
• His shirt rucked up as he reached for the top shelf.