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"