no-spill cup
nounUK /ˌnəʊ ˈspɪl kʌp/
US /ˌnoʊ ˈspɪl kʌp/
A cup that does not let liquid come out when it falls over.
She gave the toddler a no-spill cup of milk.
OTHER MEANINGS
2. A cup with a special lid that only lets liquid out when someone drinks from it.
The no-spill cup kept the juice inside even when it was upside down.
3. A drinking container designed to prevent messes during travel or play.
Pack a no-spill cup for the car ride so the seats stay clean.
4. Informal term for any cup with a secure, leak-resistant cover.
He uses a no-spill cup at his desk to protect his keyboard.