fuck with v.
1. [1940s+] to mess about with, to become involved with.
2. [1940s+] to interfere, often by physical or mental intimidation.
3. [1960s+] to copulate with (a partner is usu. cited).
4. [1960s+] (prig. US black) to impress, to overwhelm, to manipulate.
5. [1960s+] to play around with.
6. [1980s] to associate with.
[1970s+] to disturb and harm someone emotionally.
[1960s+] to intimidate, astonish or confuse another or oneself.