|1.||[ adjective ] inconclusive as to outcome; close or just even in a race or comparison or competition|
"as they approached the finish line they were neck and neck" "the election was a nip and tuck affair"
|2.||[ adjective ] involving two persons; intimately private|
"a tete-a-tete supper" "a head-to-head conversation"
|3.||[ adverb ] even or close in a race or competition or comparison|
"the horses ran neck and neck" "he won nip and tuck"