Slang dossier

Boy math

Pronounced boy math

A joke about inconsistent reasoning associated with boys or men, often around spending, effort or dating. It is the counterpart to “girl math,” not a real description of how a gender thinks.

In a sentence

How it sounds

Illustrative examples

  • “Boy math is calling expensive sneakers an investment.”
  • “He drove across town to save one dollar. Boy math.”

Where teens use it

The habitat

Comedy videos, relationship commentary and friends teasing inconsistent decisions.

Parent briefing

What parents should know

Use the joke to discuss the actual reasoning, not to treat a gender stereotype as fact. Compare the total cost, including time and travel. Teasing stops being lighthearted when it repeatedly humiliates someone.

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