A noun turned adjective depicting someone who lacks common sense or someone who mentions the "obvious".
A substitute for "Captain Obvious"
A sarcastic way of calling someone a genius.
A: The sun is yellow, doofus.
B: No shit, Sherlock, it looks like that to us, but it contains all colours or sum shit.
A: LMAO you misspelled Sherlocke.
A short Asian boy with limited vocabulary and a banging bowl cut
Person 1: 'Hey sherlock I like your hair today'
Sherlock: 'Kill yourself you fucking cunt' *slowly walks away and gets thundercunted by some fat fucker with a basketball*