The act of drinking a full beer while still at the bar before walking through a crowd. The purpose of the "pre-emptive sip" is to prevent spilling. Also known as a "safety".
"Steve ended up dumping beer down his shirt because he didn't take a second to pre-sip before heading back to his date."
"Wat a dumbass."
"Wat a dumbass."
by JohnnyMemphis October 24, 2009
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