it can also be used as a way to censor the word fuck in a more intresting way.
but mostly it is used to annoy people who do not know the meaning of the word.
What the shomk are you doing !??!?
You don't know what shomk is?? what are the hell are you?
ok man look shomk is like... potatoes cominbed with heroin and hardcore dancing in rainy day on a boat mid way to the atlantic ocean but not yet there!