I bet there is a hereitary component to this condition and while traditional thinning skin is a age related thing ... this particular condition isn't an older person problem but something in your genetic code - in my opinion.
Rapier is a thin, two-edged sword or speech that is clever. 1  An example of rapier is a sword.  An example of rapier is a comedian's comebacks.
Definition of derailleur. : a mechanism for shifting gears on a bicycle that operates by moving the chain from one set of exposed gears to another.