snow (one) under with (something)
To overwhelm or overwork one with something, such as work, responsibilities, duties, etc. Often used in passive constructions. I'm sorry I haven't returned your calls. It's just that lately I've been totally snowed under with work and looking after the kids. The boss keeps snowing me under with these huge overlapping projects.
Farlex Dictionary of Idioms. © 2024 Farlex, Inc, all rights reserved.