The image appears to be a humorously captioned photo, a type of meme, that includes a conversation between a girl who has had her hair cut and a male character responding to her statement. The girl mentions she had 3 inches cut off her hair, to which the male character initially responds with indifference, simply saying "So?"
The next line of text shows the girl emphasizing that 3 inches is a lot, which seems to perhaps aggravate or enlighten the male character as shown in the accompanying photo where he's raising his arms exclaiming "Yes!!" His expression and the gesture suggest a sudden and exaggerated realization or agreement.
The humor in this image likely comes from the play on the perception of measurement and importance. The male character's change in attitude toward the significance of "three inches" might be interpreted as a comical overreaction, which is emphasized by his physical gesture.
The exaggerated response might also be considered funny due to the potential subtext. Often, jokes can be made about the perceived difference in how men and women view measurements and size, which can lead to humorous misunderstandings or exaggerations.
The image uses a character whose intense and dramatic body language contrasts with the initial casualness of the conversation. The juxtaposition of the mundane topic of a haircut with an over-the-top reaction contributes to the comedic effect.
Lastly, the humor could also stem from the recognition of the image's format as a meme. Memes often follow a pattern in which a regular scenario is set up, followed by a punchline often delivered through an image or a twist in text. Audiences familiar with meme culture might find this setup and payoff structure inherently amusing. Girl I got 3 inches cut off my hair Him So Girl 3 inches is a lot Him Yes