“Been there, done that” has been a popular phrase since the early 1980s. “Been there, bombed that” is a jocular twist on that phrase, popularized by the United States’ wars (especially after Afghanistan and Iraq) and by war movies.
 
“Been there, bombed that” was cited in print in 2002, when it referred to graffiti bombing. “Been there, bombed that” was cited in print in 2003, when it referred to bombing in Southeast Asia. “Been there, bombed that, now buy the t-shirt” was cited in print in 2004. In September 2013, Stephen Colbert of Comedy Central’s The Colbert Report used “been there. bombed that” when talking about a potential U.S. bombing of Syria.
 
   
Wiktionary: been there, done that
Etymology
Ellipsis for “I have been there and have done that”.
Phrase
been there, done that
1.(idiomatic) (ironic) an assertion that the speaker has personal experience or knowledge of a particular place or topic
 
The Writers Forum
graffiti clothing
serpent of the light
02-04-2002, 06:29 AM
this fat freshman who was in my french class had a shirt w/ a skeme piece on the front and some quote regarding “been there, bombed that” on the back. the kid had obviously never touched a spray can before. it was humorous as well as annoying
   
The American Conservative

Been There, Bombed That
By Fred Reed • December 1, 2003
Vientiane, Laos—The Mekong flows brown and ugly past the beer stalls and restaurants across the street from the Lane Xian hotel, a slightly decomposing pile, but comfortable enough.
     
Democratic Underground
Minstrel Boy 
Mon Jul-19-04 08:03 AM
Been there, bombed that,
now buy the t-shirt.
 
James Randi Educational Foundation Forum 
Next up: Iran!
evildave
24th July 2004, 04:48 AM
(...)
Iraq? Been there, bombed that.
   
Entertainment Weekly
Movie Review
Deja Vu (2006)
MPAA Rating: PG-13
Reviewed by Owen Gleiberman | Nov 22, 2006
(...)
Actually, scratch that. In Déjà Vu, you can change the past, as Carlin ‘‘enters’’ the four-day-old surveillance footage, hurtling down highways to play rewind with reality. In doing so, he attempts to thwart the terrorist, played with been-there-bombed-that creepiness by Jim Caviezel as a gloss on Timothy McVeigh (how convenient it wasn’t al-Qaeda).
 
Bike Snob NYC
Monday, November 7, 2011
Been There Bombed That: Zoobombs Away!
(...)
This is good to know, and this joblessness would go a long way towards explaining why people in Portland have so much time to attend facial hair “curation” workshops and to engage in practices such as “Zoobombing.”
 
Twitter
Pro Cyclist‏
@PCyclist  
Been There Bombed That: Zoobombs Away! http://bit.ly/tRH5vW  #cycling
8:33 AM - 7 Nov 11
 
Deadspin
Tim Grierson
6/26/13 5:25pm
Been There, Bombed That. White House Down, Reviewed.
Die Hard was a brilliant concept for an action movie that’s been much duplicated since: Die Hard on a bus (Speed); Die Hard in a hockey rink (Sudden Death); Die Hard on a battleship (Under Siege). But what a lot of the copycats forget is that it’s not the claustrophobic location that made the original film so great, but the guy running around in it.
 
Twitter
Discord‏
@DlSCORD  
Been there, bombed that! #ColbertReport
8:35 PM - 18 Sep 13