"Girl math" is a term that has recently become popular on social media, particularly on TikTok. It is a humorous concept that refers to the unique logic that some women use to justify their spending habits. Some examples of "girl math" include:

• Anything under $5 feels free
• If you return an item for $50 and then spend $100 on another item, its like only spending $50
• Timing your hair washing so it aligns with weekend plans
• Spending extra to qualify for free shipping
• Feeling like you didnt truly wear a cute outfit if you didnt get a picture of it because no one important saw it

The concept of "girl math" is not meant to be taken seriously and is often used as a way for women to poke fun at themselves and their spending habits. However, some people have criticized the term for promoting stereotypes about women and their relationship with money. Overall, "girl math" is a lighthearted and humorous trend that has gained popularity on social media.