reverse-mush

noun:
Person who restores good luck in the presence of a mush, or person who brings bad luck.

verb:
To reverse the bad luck of a mush by acting in the opposite way.
To not accept the truths or corollary truths proposed by a mush.

noun:
Even after the mush entered the room, the house of cards remained in tact, likely due to the presence of the reverse mush.

verb:
The mush attempted to ruin my luck by prematurely offering congratulations before the game was officially over. I did not accept his congratulations and continued to play as if I was not in the lead, thus reverse-mushing his effect.