Urban Dictionary: Definitions by Phillip Barton

swept it under the rug

slyly hide crummy work to save time and energy.

Instead of picking up the dirt after cleaning the floor, he sneakily "swept it under the rug" to save himself time and effort.

I'm gonna take a breather after working so hard.

brag, bluster, crow, blow your own horn, boast, shoot a line, bullshit artist

Joe: Man, that guy's been everywhere, done everything, knows everybody!
Bill: Yeah, he's a real bullshit artist; talk about blowin' smoke.