similar to clout, it's the skill set and/or experience shown to prove that you, in fact, are a complete fucking loser. primary example is video gaming.
Ted: yo dude congrats on hitting 2k hours in gmod! that's some serious loser clout if i've ever seen it
Losernerd is a well known insult in the 1st-3rd grade community. It is a destroyer of worlds along with I know you are but what am I. NEVER challenge these burns.
Calvin: Your stupid
Grade 1 crime boss: Well your a losernerd *Calvin dies from the shear heat from that burn*