What does Big jim sandwitch mean?

Big jim sandwitch meaning in Urban Dictionary

alright here we get it’s this that i gotta say a "big Jim Sandwitch" is when you stick a random assoritement of lunch meat (salame, bongne, anything you feel that patcular day" then chances are you throw some mayo or butter whichever you prefur in a womans vagina. and then the most important part is that you eat this away like a sandwitch...DONT SKIP THAT EATING ROLE!