"Big Momma" is a character from the popular film series that features a comedic twist on undercover work. Played by Martin Lawrence, she is a larger-than-life grandmother who disguises herself to solve crimes and protect her family. Her vibrant personality and humorous antics make her a memorable figure in the movies. In the films, Big Momma often finds herself in hilarious situations, using her charm and wit to navigate challenges. The character highlights themes of family, love, and the importance of being true to oneself, all while delivering plenty of laughs along the way.