All over TikTok, "girl math" is being used to justify almost any purchase, from everyday things like $5 coffees to big-ticket items like concert tickets.
While everyone's version of girl math is different, it typically involves rationalizing your spending in often illogical ways.
Say you buy your daily coffee with cash, rather than your credit card — it's basically free, according to girl math.
On TikTok, there are hundreds of videos tagged as "girl math," with some amassing millions of views.
"That strategy straight-up does not work because it will catch up with you," Tu tells CNBC Make It.
Persons:
it's, Tori Dunlap, Dunlap, Vivian Tu, you'll, I'm
Organizations:
CNBC