Greg is the self-proclaimed "wimpy kid".
Rodrick gets angry when Greg refuses to record Rodrick's band, Löded Diper, and their mother essentially ruins the tape.
As retaliation, Rodrick supposedly tells all of Greg's friends "his big secret."
Greg hides but is happily relieved to come out and find that the rumor that spread wasn't the real "secret" but some story about Greg and a girls' locker room.
Due to the popularity of the "Wimpy Kid" series, there is a whole site dedicated exclusively to Greg and his misadventures.
