have a lot on (one's) plate(redirected from have a lot on their plates)
have a lot on (one's) plate
To have a lot to do. I just have a lot on my plate right now while I'm finishing up my degree and doing this huge project for work.
have a lot on one's plate
Also, have too much on one's plate. Have a great deal (or too much) to cope with, as in What with the new baby and the new house, they have a lot on their plate, or I can't take that on now; I've got too much on my plate already. This expression transfers a loaded or overloaded dinner plate to other activities. [First half of 1900s]