From Longman Dictionary of Contemporary Englishnip and tucknip and tuckinformal a) American EnglishNOT SURE equally likely to happen or not happen We made it to the airport, but it was nip and tuck. b) American EnglishEQUAL if two competitors are nip and tuck in a race or competition, they are doing equally well SYN neck and neck The fourth quarter was nip and tuck, but the Bulls won 92–90. c) a medical operation on your face or stomach that is done to make you look younger or thinner I might consider getting a nip and tuck in a few years' time. → nip
Examples from the Corpus
nip and tuck• Rab won the first game; nip and tuck, not much in it; to lose the next.• It was nip and tuck up to 7-7 before Best opened up a 12-9 lead.• The fourth quarter was nip and tuck, but the Bulls won 92-90. 