A gar is a noun, verb, adverb, or whatever else you need it to be.
Can you pass me that gar? (the gar, in this case, is a salt shaker)
Go catch up with those gars! (run ahead and catch up with the other people)
The girlies are garring around the town. (everyone is hanging out downtown)
She's being suuuuch a sassy gar. (she keeps talking back)
Did you turn off the gar in the kitchen? (the stove)