But Germans don't use it like people from USA, usually just when it's about making sex (example 1).
It can also be a curse but not as used by Americans, maybe in the form of "verfickt" or "verfickte" which is an adjective to "ficken" (seen in example 2).
In German dictionaries you can also find different meanings,
e.g. the card game "Ficken" and there are people who have this name, e.g. "Peter Ficken".
I am from Germany and found this website, I dunno how good my English is, but I guess this is possible to understand^^
2: So eine verfickte Scheisse. / Such a fucking shit.
verFICKte scheisse !! (used more frequently)
alex: JA! ich liebe ficken!
me: ficken? ooh what does that mean.
alex: FUCK (HIS favorite word, uses it 12 time a minute)
me: OOH! FICKEN FICKEN FICKEN FICKEN FICKEN!!
kerstin: liebe gott..... das ist nicht gut!!
person 2: "maybe it is fish"
person 1:"i will call it ficken"
person 2: "i will dance around it with torches, ficken reminds me of medival times. Like, would tho care to take a gander up the ficken?"