What does Bleckem mean? October 16, 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.