Definitions:

1. to attack verbally with harsh criticism verb
   • I don't mean to belabour you, but you must realise how badly you have messed this up.
2. to beat soundly verb
   • Our team of experts belaboured all the other teams at trivia.
3. to work at harder than you should verb
   • I don't mean to belabour the point.

Synonyms:

• belabor