It's not crass, nor is it discriminatory. Laying out a circuit is the equivalent of getting it fabricated. Terminology is used at AMD every time a chip is shipped/sent to pre-fab/taped-out/laid/fabbed/traced/etc:
Did you read your references? This one has nothing to do with electronics.
The other three all use "laying out a circuit". None of them used "laid". Luckily there are very many search hits for "laid out a circuit" (some about cycling, etc) or "laid out a PCB", so it's common usage. But "Gets your circuits laid" is clear sexual innuendo.
Sources:
[1] PCB layout: http://webcache.googleusercontent.com/search?q=cache:srb7R1n...
[2] Page 41: http://docsouth.unc.edu/neh/dsmith/dsmith.html
[3] Google Groups Discussion: https://groups.google.com/forum/?fromgroups=#!topic/comp.cad...
[4] PDF: http://web.cecs.pdx.edu/~mperkows/CLASS_573/Asynchr_Febr_200...