Phrase used in polite conversation referring to an intense acid trip. Fresca is a grapefruit-flavored diet soda that was first introduced in the United States in 1966, the same year that LSD was declared illegal. It is rumored that grapefruit may intensify a trip.
Man, I was Fresca hammered last night.
Yeah I was totally Fresca shit-faced.
Dude, 16 hours after dropping and I'm still Fresca tipsy.