What does buttnuck buttnuck mean?

buttnuck buttnuck meaning in Urban Dictionary

buttheador shmuck another word for methanphedamine. Dope speed, crystal meth. Buttnuck is used because you may need to keister your dope if ya have actually a run in wit regulations. Ya understand stick it within asshole. yup up the pooper if you should go to jail for some thing ya still got a buzz when ya make it happen.