look up any word, like bae:
 
1.
The art of knocking on an unknown persons door then running away. Perfected by youths in the mid 90's.
Rat-a-tat dinja is best performed on middle aged men upon their return from a public house. Usually on a Saturday afternoon after their football team his failed them giving the best possible return rate.
by David Leitch October 13, 2007