It means having numerous uses, being versatile or capable of being used for a great many different things.

When one thinks about many subjects at once, and is still able to function while making sense. Different to multitasking; because multitasking is doing many things at once but multi-thinking; is thinking about many subjects at once and not necessarily doing something about it.

The act of petting or playing with more than one cat at a time.

Used by mainly by Formula 1 teams, the internal code translates as an 'order to maintain position'. It is a rule that cannot be broken, and allows the racers to save their cars by driving more relaxed in the knowledge that they will not be attacked. It was used by both Red Bull and Mercedes teams during the Malyasian Grand Prix in 2013. While the rule was obeyed by Lewis Hamilton and Nico Rosberg of Mercedes, Sebastian Vettel disobeyed it to overtake then race leader Mark Webber, both of Red Bull.

A phenomena in which everyone on the ski lift has a flask of booze and shares it with the rest of the chair.

goin' thru different moods at the same time or switchin' mood many times a day

(Verb) to obtain something, in particular prescription narcotics, from several different sources; doctor shopping