The rapidly tied knot at the open end of a condom. The Sock Knot is immediately tied post ejaculation and withdrawal of the penis. A Sock Knot prevents the messy leak of semen from the used prophylactic.
After Roger blew his nut, he quickly removed the sheath from his penis and tied a quick Sock Knot to keep the mess to a minimum.
by A. M. Wood September 29, 2015