Any thing or anyone that offers security and comfort. Usually a word that refers to children and their dependency on particular security blankets, stuffed toys, mother figures, etc. May be used in later years to refer to a lover or affectionate mentor.
Little Danny loved his snug a roo roo. It was really hard when he came an age where he had to give it up.
What you say when you get a confirmed kill with a mozzie drone on r6!!!
R: I have downed him on stairs come finish him off
J: (Shoots drone and gets kill) He’s just got Roo Roo Kachu !!
M: (Still can’t aim)
T: (Rages)