uh-uh
exclamation informal uk/ˈʔʌˌʔʌ/ us/ˈʔʌˌʔʌ/
嗯，哼（表示否定回答象声词）
used in writing to represent the sound that people sometimes make to give a negative answer
"You didn't have time to get food?" "Uh-uh, no chance." “你没有时间去买吃的吗?”“嗯，完全没有。”