(in) up to (one's) elbows(redirected from in up to his elbows)
(in) up to (one's) elbows
Extremely busy; deeply involved or engrossed (in or with something). I'd love to come for a pint, but I'm in up to my elbows with work for my class on Monday. John has been up to his elbows with the kids lately.
Farlex Dictionary of Idioms. © 2015 Farlex, Inc, all rights reserved.