1. When you try to type suck a bag of dicks but your auto correct is offended by this and changes dicks to ducks
2. When you want to say suck of bag of dicks but there are children (or your parents) in the room
3. When you want nothing to do with dicks but still want to get your point across
Person 1: Donald Trump sucks
Person 2: Yeah he can suck a bag of ducks
Legendary phrase used by "Brandon" in kitty0706's "Elliot goes to school" gmod episodes on youtube.
Usually to be used as a comedic way to reject something someone told you to do.
Although not required, it is usually said while throwing something at the person telling you to do something. For comedic effect.
In-game of course.
Teacher: "Brandon you must insert mediocre thing to do"
Brandon: "Go dick-a-suck a bag!" *throws a boot into teacher's face*