I found this over at Urbandictionary.com! Definition of ‘Badap’.

1. badap bap
The response one gives when there is no other response to give. However, it may also be used in any context to substitute anything. May also be substituted with just “badap” or “bap” or multiple “bap”s make be added.
“Me and my boyfriend broke up today.”
“Badap bap!”

“My grandma died…”
“Badap bap…”

“I love you!”
“Badap…”

“That guy just stole your wallet..!”
“BADAP BAP.. BAP BAP!!!!!!!”