up to one's ears/eyes/eyebrows, to be

up to one's ears/eyes/eyebrows, to be

To be completely engrossed or overwhelmed. These phrases, likening physical immersion in something to figurative engrossment, have been around a long time. Richard Barnfield used “In love up to the eares” in The Affectionate Shepheard (1594). Anthony Trollope had “All the Burtons are full up to their eyes with good sense” in The Claverings (1866), about a century after the term came into use.
See also: ear, eye, up
The Dictionary of Clichés by Christine Ammer
See also:
  • erase
  • erase (something) from (something)
  • erase from
  • be absorbed by (something)
  • give (one's) right arm
  • give right arm
  • give your right arm
  • liken
  • liken (someone or something) to (someone or something else)
  • liken to