1. eyeball to eyeball - Adjective
2. eyeball to eyeball - Adverb
eyeball to eyeball (not comparable)
face to face
We're eyeball to eyeball...and I think the other fellow just blinked. Dean Rusk
Coming eyeball to eyeball with a hummingbird on my terrace is as exciting to me as any celebrity I've met as a result of 'Downton Abbey.' Lesley Nicol