Cloaker is Ethan Bradberry. Here he screams "I'm Ethan Bradberry!!! SLAAAAMIN!!!!" when charging on you.
I replaced both versions (regular and xmass) with these 2 new sounds (for regular and xmas cloaker, they're not 100% identical, at the end there is a little throwback to both sounds, high pitched noise for regular, and bells for xmass).

You can check both sounds here:
https://soundcloud.com/weedian/sets/payday2-cloaker-ethan-bradberry-slaaamin

To install, copy folder from download to payday2/assets/mod_overrides

Hope you enjoy this living meme :)

p.s. tnx H3H3 for inspiration :)