Idiom: To wait up for: Means: To wait until late at night without going to bed Examples: _ Don t wait up for me. I may be back after midnight. _ We waited up for our son until two o clock in the morning before we called the police. @English_with_Jeff 52 views𝕵𝖆𝖛𝖔𝖐𝖍𝖎𝖗, 17:06