To say/pretend you are someone of stature somewhere else, meaningless and not verifiable where you currently are.
"Yeah, I am big in Japan"
by KrautKontrol July 07, 2006
Something a man with a small penis says.
"Well at least I'm big in Japan"
by piddy October 11, 2012
Considering the stereotype of Asian males having smaller penises, this is a way for an average sized American male to make his own penis seem large.
My dick is Big In Japan!!
by Bear75038 May 13, 2011
Also the name of a late 1970s punk band. "Big in Japan" is also referenced in the lyrics of several other bands such as Tom Waits and New Radicals, where the phrase is used to describe the singer's supposed fame in Japan, not the punk band.
"...I hear I'm big in Japan..." - Taken from the lyrics of You Only Get What You Give, by New Radicals.
by Daverham April 20, 2007
Big in Japan is an instrumental, experimental band based out of Baltimore, MD. The members of the band make up 3/5ths of Lake Trout. Drums - Mike Lowry, Bass - James Griffith, Keyboard/Rhodes/Soprano Sax/Flute/Drum Machine - Matthew Pierce.
Big in Japan is HUGE in Baltimore.
by Napps November 16, 2007