1. something that makes a deep, continuous rolling sound
2. a person or thing that rumbles or moves with a rumbling sound
3. a member of a street gang
Usage: slang; dated

Examples

• The old truck was a real rumbler as it drove down the street.
• Thunder was the main rumbler during last night’s storm.
• The motorcycle’s engine made it quite a rumbler.
• The subway train was a constant rumbler beneath the building.
• His stomach was a rumbler when he was hungry.
• The washing machine became a rumbler when it was unbalanced.