clobber

Short definition from Wiktionary

Verb

1. 1
   To hit or bash severely; to seriously harm or damage.
2. 2
   To overwrite (data) or override (an assignment of a value), often unintentionally or unexpectedly.

Noun

1. 1
   A thumping or beating.
2. 2
   A bash on say the head, typically with a tool or object rather than with fists.
3. 3
   Clothing; clothes.
4. 4
   Equipment.
5. 5
   A paste used by shoemakers to hide the cracks in leather.