Robot girl takes it all off!
No, stop, put some of that back on.
Of course mecha-musume get mecha-bare, but in the keyword メカバレ (meka-baré), it comes from the verb bareru (“to be exposed”), so in context it’s a gal whose robotic parts are showing. Naturally, this will often also involve exposure of her more human parts as well.
Sadly, a simple search for メカバレ felt a lot like the old days of trying to pull cheesecake off of Gelbooru: I had to skip over lots of loli, bondage, rape, and loli-bondage-rape pics to find these. I allowed minor combat damage, but the more severe stuff was not appealing.
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Sometimes you have to double-click to enter text in the form (interaction between Isso and Bootstrap?). Tab is more reliable.