That brings to mind hillary's cankles.
I could be wrong but I'd think you'd need to be a pretty good sized dude to consider a .357 magnum as "light enough to carry on your ankle".
Check the weights on the .357's at the Smith website.
You're wrong.
Model 340
Caliber: .357 Magnum®/.38 S&W Special +Pv
Capacity: 5 Rounds
Barrel Length: 1-7/8"
Front Sight: Pinned Black Serrated Ramp
Rear Sight: Fixed Notch
Firing System: N/A
Grip: Hogue Bantam
Trigger: .312" Smooth Target
Hammer: Internal
External Safety: N/A
Frame: Small - J Frame Rd
Finish: Matte Stainless/ Grey
Overall length: 6-5/16"
Material: Scandium Alloy Frame, Barrel Shroud and Yoke,
Titanium Cylinder, Stainless steel barrel liner
Weight Empty: 12 ounces
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Weight approximately doubles when fully loaded. A coworker has one. Firing it with .357 loads he describes as "bang .... ouch", :) He practices with .38 spl, but carries it with .357 JHP loads.