nip and tuck

Từ điển Oxford Advanced Learner 8th

ˌnip and ˈtuck 7 [nip and tuck] adjective, adverb, noun BrE NAmE
adjective, adverb (especially NAmE) = ↑neck and neck
•The presidential contest is nip and tuck.
 
noun (informal)
a medical operation in which skin is removed or made tighter to make sb look younger or more attractive, especially a ↑facelift