Definitionenregional note: in BRIT, also use hang about, hang round
1. phrasal verb If you hang around, hang about, or hang round, you stay in the same place doing nothing, usually because you are waiting for something or someone. [informal] [V P v-ing] ⇒ He got sick of hanging around waiting for me. [V P] ⇒ On Saturdays we hang about in the park. [V P n] ⇒ ...those people hanging round the streets at 6 am with nowhere to go. 2. phrasal verb → hang If you hang around, hang about, or hang round with someone or in a particular place, you spend a lot of time with that person or in that place. [informal] [V P together] ⇒ They usually hung around together most of the time. [V P + with] ⇒ Helen used to hang round with the boys. [V P n] ⇒ ...the usual young crowd who hung around the cafe day in and day out.
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