I know I’m in the minority on this one, but as a Lego-obsessed child I read on the instructions to refer to them as “Lego bricks” and not “Legos.” As an update, semi-OCD child, I followed this rule and still do to this day.
Someone brought this issue up here where they pass on this info from lego.com:
Please always refer to our products as “LEGO bricks or toys” and not “LEGOS.” By doing so, you will be helping to protect and preserve a brand of which we are very proud, and that stands for quality the world over”
Although I never say “Lego bricks” I also never say “Legos” (and never write it with a lowercase “l” as some people might try to pass Mega Blox off as “legos”). And it’s not just that I’m a slave to the Lego corporation. To me, “Lego” is already plural (who plays with a single block?) like sheep or deer — “Legos” sounds as wrong as “sheeps” or “deers.”
Still, I know I’m in the minority:
Yeah, we say Legos here, except for the odd nerd here and there who says “It’s LEGO” in the comic book guy voice. Those nerds are grownups who play with toys and are dealt with accordingly (I am giving my husband the side eye as I type this).
I don’t correct people who say “Legos” (in my Comic Book Guy voice) though I will admit that it irritates me when I hear it. It’s probably the same part of my brain that gets annoyed when people misspell “Wookiee.”