擂潰 is read as らいかい (raikai) and means grinding.
らいかい
raikai
すりつぶす
to dissipate (a fortune)
ひまつぶし
waste of time
つぶす
to waste (e.g. talents)
つぶれる
to get dead drunk
かおをつぶす
to make someone lose face
かいよう
ulcer
いかいよう
stomach ulcer