Named after Kirstjen Nielsen, Trump-era Secretary of DHS who famously tried to rehabilitate her public image following committing atrocities at the US/Mexico border (see: caged detainment of children in squalid concentration camps).
To Kirstjen is the actions by which a person, who engaged in/was willfully complicit in/ordered hurtful and unconscionable actions, attempts to return to the very society they violated. Usually done through minimizing, or misrepresenting, the horrible actions for which they were exiled.
โUncle Rodger got drunk and drove his car into the dining room last thanksgiving, now heโs trying to Kirstjen his way back into our Christmas diner like we all didnโt remember what he did.โ