A term used to describe a party or activity where guests are encouraged to arrive under the influence of
LSD. A tab of
LSD will often cost around ten dollars, hence the name.
When it is a requirement, security will sometimes
check guests' tongues before allowing them in and charge a cover if they do not see a tab.
Guest: "Yo, man, whats the details for Saturday?"
Host: "
BYOB,
girls get free drinks, BP, no cover, ten
dollar admission, starts at 8"