Is this horrible or have I lived a very sheltered life?

[Nonreplicable]

DS is in Y6, got a smartphone for his 11th birthday last month. Wants to join a chat group with a group of his classmates. I looked at the chat today on one of his friend's phones. Message pinged as I was looking :

Sup kids, paedo SAMS home
My mum
Your dad
The ones we wished we had

I was shocked. Obviously he is not joining.

Other than this, should I:

1. Draw this to the attention of this boy's parents
2. Speak to their class teacher
3. Get a reality check and adjust my expectations as to how 11-year-olds talk these days. Accept there is much worse to come.

I've just asked DS aged 16 and his mates aged 14 -17 what it meant and the collective response was 'Dunno'

Snooks my adopted DD had that vile song sung to her about adoption too for 2 years at school. It's pure nastiness and giving kids the means to talk this kind of shit anytime and any place is why I'm a strict screen parent.

They are not mature enough to self-regulate at this age and desperate to fit in and impress their friends. So they'll join in with anything that they think makes them look 'big'. They do not fully understand the consequences of the harm they are perpetuating.

I think it's one of those yo mama jokes.

I have no idea what that message means. Just asked my teens they have no idea either. What does it mean OP??

crispandcheese I'm sorry if I have offended you and that your DD has had a hard time.
My ds1 and ds2 have cousins (slightly older than them) who were adopted when mine were aged 1 and 2 yrs; so have grown up with them (we are a close knit family). Cousins' dad is also adopted (my dh's oldest brother).
I guess what I meant was that 'that song' was meant inoffensively because adoption is the norm in our life, again I'm sorry if I caused offence to you by mentioning. I totally understand now why it would be so horrible for you and your DD

Snooks you have not in any way offended me so please don't worry! I was just adding another example of kids being vile in order to fit in. Doesn't matter what the issue is that kids use to torment others or try to look 'big', it's the end result that causes hurt.

Thank you crispandcheese (your username makes me feel ravenous btw). God only knows where these bizarre, cruel, nonsense rhymes originate from.... Agree that kids often pick up on the cruel in order to fit in, they always have, maybe always will - but screens etc make it worse. Too accessible. Your DD is lucky to have you watching over her