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"