have too much on plate
have too much on (one's) plate
To have too many things to do. I just have too much on my plate now that I've got this huge work project on top of the final edits for my graduate thesis. I'll do the printing—Sally has too much on her plate right now to take it on.
Farlex Dictionary of Idioms. © 2015 Farlex, Inc, all rights reserved.
have too much on one's plateand have a lot on one's plate
Fig. to be too busy. I'm sorry, I just have too much on my plate right now. If you have too much on your plate, can I help?
McGraw-Hill Dictionary of American Idioms and Phrasal Verbs. © 2002 by The McGraw-Hill Companies, Inc.