When you pick at your toe nails when they are long enough to get a peice that looks like a quarter moon.
by Theonly1Vindicator_soquitusing July 19, 2009
Between October 1st and December 31st there were 4 new moons instead of the usual 3 making those 3 months a black moon quarter (as in a quarter of a year).
by Enocturn November 29, 2018