When cursing is unacceptable because you're either at church or at a business meeting or among mixed company or you want your underage kids to use a curse word and the verb or noun mother fucker needs to be used you can you mofackle instead.
A person or object that could be considered very unreliable, unpredictable, tricky, deceitful, and/or questionable. Can quickly go from good to bad/ cooperative to fuckey. Basically a fun way to call a person or object an all around bastard.
1.) My car randomly breaks down on me, it's such a Shifty McFickle.
2.) Timmy doesn't give a damn about anyone but himself, he is just a Shifty McFickle.