a phrase used on twitter, usually by itself, to indicate one is playing with their genitals and/or masturbating, with shameful connotation (note: it can be typed with only the right hand on qwerty keyboard)
"En's buttocks are pretty barunga if you ask me"
"Who's that guy over there with the big barunga?" "Oh that's the famous Sicillian V-tuber, Enrico Zenitani"