SE in slang uses
[20C+] terrified; thus scare someone green/pink/white.
[1930s+] extremely frightened; thus used as a n. the scared shitless.
[1930s+] a euph. for scared shitless
see knock seven bells out of under bell n.1
[1960s+] to terrify.
see under relevant n.
[mid-19C+] (US) to obtain, usu. with some difficulty and poss. by threatening the supplier.