Gamer

Adjective: to be epic

"Gamer" can describe anything that gives you a positive vibe.

Synonyms include: good, nice, epic, awesome

Example 1:

Person 1 does something epic
Person 2: " damn bro that was pretty gamer"
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Example 2:

Person 1: damn dude that football game that i watched last weekend was so gamer
Person 2: I totally agree bro, it was indeed pretty gamer