You mean this?
It solved the problem here anyway. Thanks for the input. I was actually after a grace note. I just couldn't figure out how to explain it so I called it a flam because it's a little more common (to me anyway).
Just to be clear (a note from Mr Pedantic) a grace note is usually a different note to the one it precedes, often a step lower. A flam (AFAIK only a term used for percussion) is a sort of grace note that is played on the same drum, ie two sticks hit the snare, one momentarily before the other.
Hopefully a drummer might correct this in the case that a flam can also apply to first a hit on one drum followed immediately by a different drum.