[late 15C–17C] the vagina.
1. a husband; a lover.
2. an unborn child.
1. sexual intercourse.
2. conception; thus get a lap-clap, to become pregnant.
1. [late 17C–19C] the vagina; thus Lapland witch, a prostitute.
2. [1920s+] the world of women.
[1970s+] one who enjoys cunnilingus.
SE in slang uses
1. [late 19C+] confidentially; also as adj.
2. [20C+] orig. of betting, clandestinely; also as adj.