Skate boarding (slang/cheer). Used as a sort of chant to (mentally/psychologically) (commit to/stick) a gap or difficult trick.

(Also used to give praise to a successfully landed difficult gap or trick; like when pool/vert skaters smack the edge of their boards against the side of the pool or vert ramp when someone completes a difficult trick or run.)

A Bloomer is someone with a bright outlook on life who is optimistic in nature. Bloomer's frolic in every opportunity to be happy and try to make the most out of life. The opposite of a Bloomer is a Doomer. The term Bloomer originated specifically as a counter to the Doomer on sites especially like 4Chan.