Yaoi (boyxboy) couple from the manga "Axis Powers Hetalia" considering the french character (Fr) and the english one (UK)
This couple name is even used by the fans in real life to describe a relationship that isn't really understood or clear.
Even though the word looks a lot like "FUCK" it doesn't mean anything like it, but the fans may use "FrUK" to replace it when swearing.

A casual invitation / threat used by an individual that is not afraid of fucking someone up.

To be in pain or dissapointed. Used instead of fu*k

A fruking thing, part of a fruker,

Past tense. If somebody says, "look, that old guy freaked out!" it doesn't really sound like it should. But, if you say "look, that old guy fruk out!" it makes sense on how you would say it. Am i right? Or am i right?