Neck and neck Meaning, Definition & Usage

  1. adjective satellite inconclusive as to outcome; close or just even in a race or comparison or competition
    nip and tuck; head-to-head.
    • as they approached the finish line they were neck and neck
    • the election was a nip and tuck affair
  2. adverb even or close in a race or competition or comparison
    nip and tuck; head-to-head.
    • the horses ran neck and neck
    • he won nip and tuck

WordNet

Definitions
  1. (Racing), so nearly equal that one cannot be said to be before the other; very close; even; side by side.

Webster 1913