1cock 
/ˈkɑ:k/ noun
plural cocks /ˈkɑ:k/ noun [count] 1 : an adult male chicken : rooster
▪ The cock was crowing. 2 : a device for stopping or slowing the flow of a liquid or gas through a pipe : stopcock 3 informal + impolite : penis
▪ The cock was crowing.
cock of the walk
◊A man who is described as (the) cock of the walk is very proud and successful or acts in a very proud way.
▪ He was strutting around like the cock of the walk after he got a promotion.
▪ He was strutting around like the cock of the walk after he got a promotion.
