A charateristic of people who are methodical and dependable. A trait that very productive people posess. Applicable to all things... including the metronome.
My wife is amazing partially because of her METRONOMICAL abilities which allow her to do many different things; on time and precise.
THe sexual act of wearing a feel doe while fucking someone. As the man 'pulls' out the feel doe goes into another person turning the man into a metronome.
"Last night I did a metronome with your mom and dad, they loved it!"