in BRIT, also use 英国英语亦用 wait about
PHRASAL VERB (长时间地)干等，空等 If you wait around or wait about, you stay in the same place, usually doing very little, because you cannot act before something happens or before someone arrives. (长时间地)干等，空等
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The attacker may have been waiting around for an opportunity to strike. [VERB PREP. + for]
袭击者也许一直都在等待着动手的机会。
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I waited around to speak to the doctor. [VERB PREP. to-infinitive]
我干等着跟医生说话。
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...the ghastly tedium of waiting about at the airport. [VERB PREP.]
在机场候机时的百无聊赖
SYN hang around, linger, loiter, hover around