Has anyone noticed Gpt5.1 is using vulgar words now?

So I've been using thinking extended on 5.1 since it launched and I noticed it's slipping in words like "crap" and my favorite "raw-dogging".

Now the kicker is, I'm not asking for it to say this, it's SFW topics like work, medical and computer science topics. I'm not entirely against it, but if I was going to use this for work I really wouldn't want "raw dog your os" being submitted to a customer or boss.

Has anyone noticed this? I don't use custom instructions and I didn't see this on 5.0 or o3 or 4.

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