Texas Switchblade 

The act of having sex with a girl with your penis folded over in half, and at climax releasing it to its full length causing your genitalia to produce a switchblade-type motion.

"Hey man, you give it to that ho last night?"
"Yeah dude I totally bent my shit in half and hit her with the texas switchblade at the last minute!"

Texas Switchblade by XcupcakeX January 22, 2009

Irish Switchblade 

A broken beer bottle; usually used for self-defense in a bar fight, or as a deadly weapon in a rumble and/or your standard bumfight.

Two-Bit Matthew's weapon of choice when a gaggle of Socs roll up on him, Pony Boy, and Johnny at the Drive-In.

I got into an argument with this guy down at the pub last night, and he cut the shit out of me with an Irish Switchblade.

Irish Switchblade by Detroit Steve March 13, 2012

Mexican Switchblade 

A broken beer bottle held in the hand and used like a knife.

Two drunk guys got into a fight in the bar and one them turned his beer bottle into a Mexican switchblade.

Mexican Switchblade by Kongo Kong May 29, 2018

golden switchblade 

A sexual act where one partner swings around the head of the other using their legs and pees

She is a freak she gave me a golden switchblade and my clothes were covered in pee

golden switchblade by Himason9 April 11, 2019

Nintendo Switchblade 

The perfect weapon for friendly murder :)
And also for protecting yourself from Karen >:)

Ben: Time to get out my Nintendo Switchblade!
Karen: The WHAT?

Nintendo Switchblade by AydinDDT2009™ September 12, 2022

switch-blade 

n., A knife with a blade that can be deployed by depressing a button, switch, or hidden mechanism. Switch-blade knives
vary in design; some deploy the blade in a linear fashion from the handle ("out the front") while others swing a blade
out in an arc from the side of the knife handle ("side opener").

Switch-blade or "automatic" knives vary
in legality from region to region. Gang
use of such knives in the American 1950s
prompted bans on such knives in several states that remain in force today.

Switch-blade knives are illegal in some
nations, such as Canada.

The term "automatic knife" has replaced
"switch-blade" in some knife collector
circles when describing modern designs.

Also "switchblade".

He drew a switch-blade knife from his pocket, and it snapped open with a report.

switch-blade by T.D. January 20, 2003

switch blade 

A foldable knife where the blade is deployed using a button or lever on the handle.

In "12 Angry Men", the 18 year old boy killed his father with a switch blade.

switch blade by sihfoagfndhmdfm October 7, 2006