An amalgamation of "Best Friend" and "Significant Other", usually referring to someone of the opposite sex. Essentially someone who you have no romantic connection to but still love (as a friend) anyhow - a step above "Best Friend" which is used too interchangeably with "Friend".
You know, you're not just a friend Alyssa, I'd call you a significant friend :-)
by monsieurmandarin July 17, 2021
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