fast cuts

The definition of a fast cut is

"a film editing technique which refers to several consecutive shots of a brief duration (e.g. 3 seconds or less). It can be used to convey a lot of information very quickly, or to imply either energy or chaos"

There is also the technique called Hip Hop Montage which is

"a subset of fast cutting used in film to portray a complex action through a rapid series of simple actions in fast motion, accompanied by sound effects. The technique was first given its name by Darren Aronofsky, who used the technique in his films Pi and Requiem for a Dream to portray drug use"

The Hip Hop montage is applied numerous amounts of time by director Edgar Wright, in his works 'Spaced', 'Shaun of the Dead' and 'Hot Fuzz'.

http://en.wikipedia.org/wiki/Fast_cutting