Definition of billbug
: any of various weevils (as of the genus Sphenophorus) having larvae that eat the roots of cereal and other grasses
Recent Examples of billbug from the Web
Check for mealybugs, billbugs and nematodes in zoysia lawns and treat as needed.
These example sentences are selected automatically from various online news sources to reflect current usage of the word 'billbug.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.
Origin and Etymology of billbug
1bill + bug
First Known Use: 1831See Words from the same year
Seen and Heard
What made you want to look up billbug? Please tell us where you read or heard it (including the quote, if possible).