look up any word, like blumpkin:
 
1.
It will rain shortly, expect rain in the next 20 minutes or so.
Q. Shall we have a picnic Ginger?
A. No Sedgewick, it's black over bills mothers house.
by John Stevenson June 10, 2004
 
2.
To see a dark rain cloud on the horizon.
look its "Black over bills mothers house."
by Galube aka Shit Eyes...... June 10, 2010