人头熟

to know a lot of people

person; people / CL:個|个[ge4],位[wei4]

person / number of people / (per) capita / (a person's) head / (Tw) person whose identity is used by sb else (e.g. to create a bogus account)

head / hair style / the top / end / beginning or end / a stub / remnant / chief / boss / side / aspect / first / leading / classifier for pigs or livestock / CL:個|个[ge4]

suffix for nouns

ripe; mature / thoroughly cooked; done / familiar; acquainted / experienced; skilled / (of sleep etc) deep; profound / also pr. [shou2]