Boy math
Etymology
Formed directly after girl math, which went viral on TikTok in 2023 as playful rationalizations for spending. "Boy math" arrived as the retort, applying the same mock-arithmetic framing to men’s reasoning, usually more pointedly and critically.
noun · /BOY math/
A mocking label for the dubious or self-serving reasoning some men use to justify their choices.
What it names
It names a genre of joke about male rationalization — the "logic" behind refusing to spend on small comforts while splurging elsewhere, or inflating one’s own appeal — coined as an answer to "girl math."
Example
Boy math is refusing to pay for guacamole but dropping four hundred dollars on a monitor stand.
Related idea
The counterpart to girl math: same joke structure, but girl math tends to be self-deprecating while boy math is aimed at men from the outside.
See also