If you're not addressing a group of people who identify as men, you probably didn't mean to exclude women, non-binary folks, and others who do not feel comfortable with "guys". Perhaps consider using good alternatives like “y’all," "gang," “friends,” “fellow humans,” “people,” “crew,” or "everyone" instead in the future!
retarded/herp/derp can be perceived as ableist. How about "bad"/"uninteresting"/"awful"/"silly"/"ridiculous"/"terrible"?
crazy/insane can be perceived as a mental health slur. How about "illogical"/"ridiculous"/"strange"/"amazing"?
"lame" can be perceived as ableist. How about "bad"/"boring"/"frustrating"/"disappointing"/"tedious"/"terrible"?
dumb/stupid/idiot can be perceived as a mental health slur. How about "bad"/"ridiculous"/"wrong"/"pandering"/"unthinkable"/"useless"?