1.) When somebody is giving you trouble when doing something
2.) When a race car is trying to ram you off the track when you are participating in a race, thus giving you trouble. Bubs is just a word to make it sound better
There is also a shorter version - Trubs
1.) Dave: "I really hate the apps you get on your iTouch that give me advertisment trubs in the bubs"
Chris: "Then buy the good version and stop being a jew"
2.) "The Lamborghini was giving trubs to the Porsche's bubs on the race track"
Someone or something that bites your ankles.
To a postman, an ankle biter is often known as a dog.
To an adult, an ankle biter may be a toddler.
To hikers, an ankle biter is sometimes a tick.
And so on.