oh blamo! Share definition Flag an exclamation used in the united kingdom, more commonly great britain. similar to the more popular "oh shit!" only proper way to say it is using a british accent person a: "ough! i spilled me crumpets and tea everywhere" person b: "oh blamo!" oh blamo! by nelson 2 August 31, 2020 0 0 Get merch Get the oh blamo! mug. Buy Now — $32.95 See more merch