For years now, many have come to know this position as doggystyle but recent internet fiends would use backshots instead, likely because it's a little fresher and less stale. (internet slang, colloquial) to be shot in the back It is indeed a “sex joke”, yes
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“backshots” refer to one partner being penetrated from behind
The joke is in the possible double meaning of the poster’s original comment, which he quickly realises (or intended all along).
Receiving a force of feeling/damage from someone else while they're on another back. ‘backshots’ is an unabashedly vulgar slang term referring to sexual intercourse from the rear position, typically meaning the penetrative partner is positioned behind their consenting cohort Definition of backshots in the definitions.net dictionary Information and translations of backshots in the most comprehensive dictionary definitions resource on the web.