A 'special' sock that is used for 'mopping up' following a 'five knuckle shuffle'. Such footwear have the unusual characteristics of being able to stand upright after repeated use.
Used extensivley by males aged 11 upwards.
Time to go to the launderette: my cum socks aren't mopping up anymore.
Author of a pirate-themed webcomic, High Seas Hijinks.
Knows a lot about pirates.
No relation to Cap'n Crunch or Captain Planet, though these rumors persist.
Actual name unknown.