"Have a lot on your plate" means "to have a lot of things to do". Example: Sorry, I can't go golfing with you. I have a lot on my plate right now. - Learn and improve your English language with our FREE Classes. Call Karen Luceti 410-443-1163 or email firstname.lastname@example.org to register for classes. Eastern Shore of Maryland. Chesapeake College Adult Education Program. www.chesapeake.edu/esl.