i have nooo idea what's going on

Arakune can only recognize Litchi by her breasts. The End.

This is an accurate representation of how non-BlazBlue playing people identify Litchi.

"Jam with bigger tits and a stick"

You mean her fighting style? Her personality isn't anything like Jam's.

Yes, just the at-a-glance thing from those making the jump from GGXX. Like how there's a "Blaz Sol", "Blaz Ky", "Blaz Potemkin", etc.