What does Bleckem mean? May 26, 2017 All Dictionary Bleckem meaning in Urban Dictionary inter.1. Familiar with show disinterest in the topic of discussion. 2. accustomed show extreme displeasure or exasperation.3. Familiar with show "Huh?", "I do not give a shit", "Blah", and "Ow Ow Ow" in one term. n.1. The fantastic word.