sharps and flats n.
the penis and vagina, in the context of intercourse.
![[UK]](/static/img/flags/uk.png "United Kingdom") | Petition of the Widows in Harleian Misc. X (1810) 171: We have been concerned in several fierce engagements; and the men played their sharps against us, when we could only produce flats on our side [...] though we were so disadvantageously set upon, and the blood-shed that happened on these occasions, was always on our part. |