wash over

Short definition from Wiktionary

Verb

1. 1
   To pass (one) unnoticed so that one is unaffected by it.
2. 2
   To affect the emotions of (a person) suddenly and overwhelmingly.
3. 3
   To surge over the banks, or other retaining structure.

Noun

1. 1
   An act of washing which encompasses the entire surface.