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To become coated with a thin layer of ice. If the ground frosts over tonight, we'll have a much harder time digging into it tomorrow.
Farlex Dictionary of Idioms. © 2015 Farlex, Inc, all rights reserved.
to become covered with frost. The windows had all frosted over in the night. The car windows frosted over.
McGraw-Hill Dictionary of American Idioms and Phrasal Verbs. © 2002 by The McGraw-Hill Companies, Inc.
To become covered with frost: The blades of grass frosted over in the cold night air.
The American Heritage® Dictionary of Phrasal Verbs. Copyright © 2005 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
mod. angry; annoyed. The clerk was really frosted over when I asked for a better one.
McGraw-Hill's Dictionary of American Slang and Colloquial Expressions Copyright © 2006 by The McGraw-Hill Companies, Inc. All rights reserved.