The quantity of a mind-altering substance which does not impair the user's ability to functionally converse. This dosage can a be highly (no pun intended) subjective, depending not only upon the substance and the user, but also the peripheral circumstances.
When David Hasselhoff's cheeseburger starts falling apart, that's a sure sign that Mr. Hasselhoff has surpassed his social dose of alcohol for the evening.

You might THINK you're on a social dose of david lee roth, but you are acting like an overbearing coked-up bastard.

The girls didn't know much about mixing alcohol with pills, so their 'social dose' of Xanax and Smirnoff Ice led to blackouts and xanaps.
by Lârry Dângüs, esq. May 27, 2010
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