dress-up

基本解釋

Practically swimming in his dad jeans, Narayen looks like Nate Robinson playing dress-up in a Shaq suit.
他在寬大的老爸式牛仔褲裡遊泳的時候，挺像內特羅賓森穿著奧尼爾的衣服打球。
She set aside the large sunroom in her home for the children and filled it with blocks, games, crayons, magazines to cut up and draw in, as well as toys and dress-up clothes.
她騰出家中一間大的朝陽屋給孩子們，房間裡到処是積木，玩具，蠟筆，及供孩子們裁剪塗畫的襍志，除此外還有很多娃娃和道具服。
Everyone in this living-history site likes to play dress-up, and visitors are no exception.
每個來到這個現存歷史古跡的人都會感到像是在化裝舞會，連遊客也不例外。

Designed by fashion icon Betsey Johnson, the pink paradise is complete with pink-and-white striped wallpaper, a table set for a fancy tea party and a closet stuffed with dress-up clothes.
FORBES: Hotel Suites With One-Of-A-Kind Themes
The ruby-colored dress was a follow-up to the white gown Wu made for her four years ago when she was new to Washington, the pomp and circumstance, and the fashion press.
NPR: Michelle Obama Wears Wu To The Balls Again

Dress-up is the same as . dressing-up
Dress-up clothes are stylish clothes which you wear when you want to look elegant or formal.