1. the larval stage of antlions, small insects that dig cone-shaped pits in sand to trap prey
Usage: informal
2. German V-1 flying bombs used during World War II
Usage: historical; informal; British
3. small tractors or other light vehicles
Usage: informal; regional

Examples

• The children watched doodlebugs create tiny sand traps in the yard.
• Doodlebugs wait at the bottom of their pits for ants to fall in.
• During the war, Londoners feared the sound of doodlebugs overhead.
• The farmer used his old doodlebug to plow the small garden plot.
• We found several doodlebug pits near the sandy path.
• The museum displayed a model of a V-1 doodlebug from World War II.