And How Meaning

(idiomatic) Used to strongly confirm the preceding utterance.

Example:   Did it create a disruption? And how!
  It created a disruption, and how.
2011 December 10, David Ornstein, “Arsenal 1 - 0 Everton”[1], BBC Sport:
  However, just as Wenger was preparing to introduce Andrey Arshavin and Tomas Rosicky, Van Persie struck - and how.