Readers of this website are likely to be familiar with nikuman, the steamed rice pastry often made with meat filling. In the past we have reported on the delicious slime shaped nikuman and Puyo Puyo themed nikuman. One thing to note about nikuman is that their name is made up of two parts niku (meat) and man (steamed bread) so that if you change the filling the suffix remains the same giving you pizzaman or curryman.
Universal Studios Japan took notice of how this is linguistically similar to the suffixes often used for superheroes in English and developed Spiderman (here the man would be pronounced kind of like a Jamacian accented mon).