to mess or muck (about, around etc.)
to masturbate
to fuck; to have sex.
to make a temporary alteration to something, to fudge, to manipulate
A temporary modification to a piece of equipment to change the way it operates (usually away from as originally designed).
A fuck.
An act of frigging.
Dated spelling of fridge.
To harm oneself.
Physical or verbal maltreatment of oneself.
Injury inflicted deliberately upon oneself, especially resulting from a mental disorder.