A friend who is not exactly an acquaintance, but, will never be the first hand option to hang out with, invite to social events or chat.
"Did you invite Sarah to go to the mall with us tomorrow?"
"Nah, she's just a back pocket friend, she's not fun to hang out with"
"Nah, she's just a back pocket friend, she's not fun to hang out with"
by Askrankira March 8, 2021