Someone who doesn't make plans for themselves and/or their partner, but clings onto other people and their date plans.

Someone who doesn't plan, but takes other people's plans. Often being a third wheel and/or bringing multiple "third wheels" in.
Jon never plans dates with his girlfriend, he just asks what his friends are up to and joins in on their plans. Jon is such a social koala.
by Fuzzybean October 17, 2020
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