I like to collect and save obscure or archaic medical terms for various sexual activities, conditions, body parts and so on. Maybe not so comical as some of the rhyming terms so favored in English, but maybe of interest for some anyway. Back in the days when psychotherapy and sexual studies were still young, researchers and writers liked to invent their own newly coined terms, it sounded very learned and erudite. This was usually done by making combinations of Latin and Greek words. Sometimes the words caught on - like homosexual or cross-dressing or transvestite - but more often they didn't.
diddling
frigging
jilling off (f)
nerking
bouginonia - fem mast with dildos
sacofricosis - cutting hole in pants pocket to masturbate
tachi geimu - sexual petting (Japanese)
manustupration - masturbation (archaic)
ipsation - masturbation
amatripsis - idem
manuxorate - masturbate with hand
siphnianize - anal mast
syntribate - mast by rubbing thighs
maritate - fem mast
clitorize - masturbation / fem
autosexuality
contrectation - fondling another’s genitals
manualized his embolon … (frigged his prick)
erotomastia - fondling own breasts
postillionage - inserting a finger in anus
analipsation - fondling one’s own anus