- 挨肩擦背 āijiāncābèi crowded together(idiom) shoulder to shoulder and back to back; describes a place being very crowded or packed with people
- 挨肩儿 āijiānr close in age(colloquial) born in rapid succession; close in age (usually of siblings)
- 挨肩叠背 āijiāndiébèi be very crowdedto be extremely crowded with people; packed shoulder to shoulder
- 挨肩搭背 āijiāndābèi to be very intimateshoulders rubbing and arms around each other; describes people acting in a very close or affectionate manner
- 挨肩擦膀 āijiāncābǎng to rub shouldersto be crowded together or packed in a crowd; to rub shoulders with many people