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1.
On the penis, that thin ridge of skin connecting the foreskin to the helmet
by cracky March 01, 2003
 
2.
the frenulum: the fine length of skin on the underside of the penis linking the fireman's helmet to the foreskin and main shaft, sensitive but also vulnerable during particularly rough sex
she wanted it rough and i didn't have any lube; my banjo string ripped and i'm in agony this morning
by Joe Blow99 July 10, 2006
 
3.
the thin piece of skin surrounding the glans and connecting them to the underside of the foreskin
bryn snapped his banjo string at his party the other night while fucking one of his munters
by phathank&globalhead July 25, 2005
 
4.
1. The elastic band of tissue connecting the foreskin of the penis to the underside of the glans; the fraenulum praeputii penis.

2. The string of a banjo, often plucked or strummed in order to produce twangy music as most regularly associated with the Hillbilly or Billy Connolly.
Not quite so hard, Sarah; you'll snap my banjostring!
by Tama Boyle January 24, 2007
 
5.
The thread that joins a males testes with his penis, clearly visible as an apparent line running down both the shaft of a mans penis and his testes.
"Oh My god, last night when i was fucking my girlfriend my banjostring snapped and it bled for hours".
by TimmyVerbs August 24, 2005
 
6.
banjo string, on the underside of the penis the sensative string connected to the helmet, often broken by tubes in the passion for rough sex
oh look at that tube walk, bet he's missing a banjo string!
by yag noj March 19, 2010
 
7.
The area between the ass and balls.. notice the 'seam' of skin in this area, forming a small line, hence, the banjo string.
by Bob April 01, 2003