In college (undergrad and grad school) I did a lot of graphics programming and color lost all meaning on many occasions. It wasn't the whole variable name (well, typically, maybe on occasion but not normally) but often things like BackgroundColor or ForegroundColor and so on. On many busy coding days at some point I'd just see this word scattered about the screen and have to convince myself that it was in fact the correct word and used correctly and spelled correctly (though perhaps British English speakers would disagree on the spelling).

I haven't experienced it in quite a while, though. And I don't do any graphics programming anymore anyways so when that word shows up in my code it's usually in the very minimal bit of GUI programming I touch anymore. I'm not sure any other word ever gave me quite as much trouble.