snow under with

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.
See also: snow
Farlex Dictionary of Idioms. © 2015 Farlex, Inc, all rights reserved.

snow someone or something under with something

 and snow someone or something under
to burden someone or something with something. (Usually too much work.) The busy season snowed us all under with too much work. The heavy workload snowed under the office staff.
See also: snow
McGraw-Hill Dictionary of American Idioms and Phrasal Verbs. © 2002 by The McGraw-Hill Companies, Inc.
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