Perspiration (usually but not always from the pittles) from a sysop {short for, "system operator"}, a person who operates a BBS.
{Julio}: Hey Dave! What's that wet shit on the floor?!?
{Dave}: Oh nothing Julio. It's just some sysop sweat.
{Dave}: Oh nothing Julio. It's just some sysop sweat.
by Telephony July 20, 2014