Curate, connect, and discover
Jason in the League getting a babysitting duty w baby Damian and so he just does what he thinks parents normally do. So he goes ahead and teach the kid, 'Mama' so that Talia can be idk hapy about it. He just figures Talia would want Mama to be her son;s first word. probably.
But now the thing is, Baby damian attaches Mama with Jason.
So now you have this 6 foot tall hunk of a babysitter bodyguard who is addressed to as Mama by the Prince. and Jason is just stumped cos he doesnt know how to fix it.
When Damian grows up eventually he just calls Talia 'Mother', but Jason is still98% of the time Mama. It just stuck and he never quite figured out how to undo it.
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Flashforward, after becoming robin, and gaining some conciousness in general Damian started calling Jason 'Todd' (or whatever honestly idgaf), but the word Mama still slips out sometimes when Damian is like really pissed off and screaming "WHY DID YOU HOLD ME BACK MAM- TODD", or super not paying attention- "uhm, idk ask mama. hm? Todd. ask todd. thats what i said.", or like drugged when hurt, "ma, wheres mama..."
:3c