He was one of the school bullies with his friends Dolph Starbeam, Kearney Zzyzwicz, Nelson Muntz and He is a sixth grader and has been held back multiple years and Jimbo has an on-and-off friendship with Bart Simpson that depends on how badly Bart is willing to behave and whether he has any lunch money or not Jimbo temporarily became one of Bart's friends, like Milhouse, and became his next-door neighbor. Bart warns Homer, Marge, Lisa, and Maggie of Jimbo paying a visit to 742 Evergreen Terrace. However, Jimbo got even with him while he stayed with Bart and Jimbo was also romantically involved with Shauna