Adverb
head and ears (not comparable)
(informal) With the whole person; deeply; completely.
to be head and ears in debt or in trouble
I 'never told my love' vocally; still, if looks have language, the merest idiot might have guessed I was over head and ears. Emily Brontë
Down a path worn into the woods, past a stream and a hollowed-out log full of pill bugs and termites, was a glass coffin. It rested right on the ground, and in it slept a boy with horns on his head and ears as pointed as knives. Holly Black