abraham’s bosom, n. — Green’s Dictionary of Slang

abraham’s bosom n.

[punning on the biblical use meaning the ‘abode of the dead’, e.g. at Luke 16:22: ‘The beggar died, and was carried by the angels into Abraham’s bosom.’ In both SE and sl. senses the implication is of ‘lying on’]

the vagina.

1890–1904

Farmer & Henley Sl. and Its Analogues.

In phrases

be in Abraham’s bosom (v.) (also take a turn in Abraham’s bosom)

to have sexual intercourse.

1890–1904		Farmer & Henley Sl. and Its Analogues.
1980		Maledicta IV:2 (Winter) 196: The terms used for copulating […] are not really euphemistic because it is implicit that no ambiguity could possibly result and, unlike euphemisms, they are, or used to be, avoided in polite, mixed company. Related to this group are the allusive […] to take a turn [...] in Abraham’s bosom.