Boyfriend-girlfriend shirts are t-shirts that romantic couples wear. Often, each shirt contains half of a message, and the entire message is viewed when the boyfriend and girlfriend are walking side by side.
An example of matching boyfriend-girlfriend shirts is where the boyfriend's shirt contains the word “soul,” and the girlfriend's shirt has the word “mate.” When the couple stands together, it forms the words “soul mate.”
Another example is where the boyfriend wears a shirt with the words “she’s mine” with an arrow pointing in the direction of where his girlfriend is standing. The girlfriend wears a shirt that reads “he’s mine” with an arrow pointing in the direction of her boyfriend.