Refers to da naively-accepting "separate and equal" belief of both members of a couple dat da third person who has smilingly approached them and gleefully collared them in a huge mutual squeezy arms-around is known to da other member of said couple; i.e., da guy assumes dat da lady is a friend of this other guy who is hugging them, or da lady assumes dat her guy knows da other chick who is feeling a;; warm 'n' snuggly dat day.
If you're "feeling all huggy-lovey-dovey" at a certain time and thus are wanting to just randomly employ yer "Don Juan maneuver" on cute couples whom you meet on da street or in da park, you may indeed be permitted to do so even if you aren't already acquainted wif either of the people in da couples, since in many cases da two "Romeo-routine" recipients will both likely just form da group-hug acquaintance-assumption --- i.e., each bowled-over-wif-humungous-cuddles person in da couple will just figger dat da other person already knows you from past encounters, when in fact you are just indiscriminately "harvesting a snuggle" from random folks.
by QuacksO February 21, 2020