Fuck

Fuck as many meanings.
1) Can be used when forgetting something
2) Can be used when saying sex
3) When cursing out someone

4) When surprised or asking a question

Example 1 - Fuck! I forgot my book at home!
Example 2 - I'm gonna fuck Lana tonight!
Example 3 - Fuck you Brian!
Example 4 - What the actual fuck is going on here?!