大腕

star / big shot / celebrity / leading actor / authority (slang)

see 大夫[dai4 fu5]

big; large; great / older (than another person) / eldest (as in 大姐[da4 jie3]) / greatly; freely; fully / (dialect) father / (dialect) uncle (father's brother)

wrist / (squid, starfish etc) arm

erhua variant of 大腕[da4 wan4]