Local to the West Coast of Scotland (especially Glasgow) & having been used since the late 1960's/early 1970's to describe in slang terms, the act of head butting another individual (see also Malky)
I'm led to believe that it's also been used in printed stories & rhymes, again locally in the Glasgow/West of scotland area, by the likes of the Glaswegian poet & wordsmith, Liz Lochhead, (who was invited to read some of her work to my schools drama classes, during the school year 1981 - 82).
"...Ho, see that dobber over there that's lookin at me oot the corner o his eye, he's gettin a dose o the malkies afff a me, if he doesn'y gee it a by."
A very beautiful girl with one of the best smiles you will ever see. She’s got the best personality, funny and fun to be around and one of the best girls to get with. This is one you would consider marrying. Overall she is just the best thing that could ever happen to you.
Tj: Hey, you seen Markiera?
Don: Yeah, saw her beautiful smile from a mile away. I wish she was mine.
Tj: Me too man.