Green’s Dictionary of Slang

amen n.

[18C+] a generic term used in the following combs. pertaining to religion or praying.

In compounds

amen-bawler (n.)

[19C] a parson, a preacher.

amen corner (n.) [the seats of the most enthusiastic congregants, who punctuate the prayer and sermon with cries of Amen!]

1. [late 19C–1940s] (US black) the front seats in a church, on either side of the pulpit.

2. [late 19C] in fig. non-religious use.

3. [late 19C–1940s] (US black) attrib. use of sense 1, pertaining to people who occupy those seats, i.e. the most devout members of the congregation.

amen-curler (n.) [? SE curler, one who writhes about; thus the clerk, wishing to demonstrate his piety]

[18C–early 19C] a parish clerk; thus queer amen-curler n., a drunken parish clerk.

amen-man (n.)

[late 18C] a church clerk.

amen-preacher (n.) [its black plumage, and the dislike felt by many West Indians for the white missionaries who preached at them]

[early 19C+] (W.I.) the carrion crow.

amen-snorter (n.)

[late 19C+] (mainly Aus.) a parson.

amen theatre royal (n.) [? the innate theatricality of religious services]

[late 19C] a church.

amen-wallah (n.) [wallah n. (1)]

[19C+] the chaplain’s clerk; a clergyman.

In phrases

curl an amen (v.)

to work as a parish clerk.