Same as "hold on to your hat", meaning that you should anticipate what is to come, because it will be very great, magical, frightening, etc.
First used by Tobuscus on his Twitter when announcing he is uploading a new song.
First used by Tobuscus on his Twitter when announcing he is uploading a new song.
by harvesterboy June 12, 2013
Get the hold unto your bucketsmug.