1 definition by Mr Bilbo Swaggins

An illogical reasoning and justification to making an unnecessary purchase used primarily by women.

When someone wants to purchase something, this purchase often being more than they should make, they will make illogical reasoning to justify the purchase, this reasoning is known as "girl math." There is reasoning behind the "girl math," but the reasoning is strongly biased towards the impulsive desires of the user to make the purchase and isn't very logical when taking everything into account from the person's income, to the cost of the purchase, to the necessity of the item.

Some examples of "girl math" are:
- Someone says "I made sixty dollars today!" when they bought something discounted for $440 that was usually $500.
- When buying $300 shoes, "it's less than a dollar a day if I wear them for a year." This "girl math" is commonly used as marketing in product advertisements as well.
- When returning an item, "I made an extra $120 today," followed by immediately going to the store to spend all of it because it was extra money.
- When purchasing something from the store, "it's free because I'm using cash." The reasoning coming from the fact that the purchase won't effect the person's funds in their bank account.
Got this $260 pair of shoes for free because I used cash! Girl math!
by Mr Bilbo Swaggins September 26, 2023
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