Fuck
From wipipedia.org

Fuck
fuck Pronunciation Key (fk) Vulgar Slang v. fucked, fuck·ing, fucks v. tr.
1. To have sexual intercourse with. 2. To take advantage of, betray, or cheat; victimize. 3. Used in the imperative as a signal of angry dismissal.
v. intr.
1. To engage in sexual intercourse. 2. To act wastefully or foolishly. 3. To interfere; meddle. Often used with with.
n.
1. An act of sexual intercourse. 2. A partner in sexual intercourse. 3. A despised person. 4. Used as an intensive: What the fuck did you do that for?
interj.
Used to express extreme displeasure.
Phrasal Verbs:
fuck off
1. Used in the imperative as a signal of angry dismissal. 2. To spend time idly. 3. To masturbate.
fuck over
To treat unfairly; take advantage of.
fuck up
1. To make a mistake; bungle something. 2. To act carelessly, foolishly, or incorrectly. 3. To cause to be intoxicated.
References:
- The American Heritage® Dictionary of the English Language, Fourth Edition
- Wikipedia: Fuck