Where does “bullbleep” come from?

bullbleep (English) comes from English Bull, from Middle English bull — falsehood.

bullbleep (English): Bullshit

Definitions

  1. Bullshit

Ancestry of “bullbleep”, step by step

bullbleep traces back through two separate lines of ancestry.

via English Bull

StepLanguageWordMeaning
1EnglishBullThe constellation and zodiacal sign Taurus
2Middle Englishbullfalsehood

via English bleep

StepLanguageWordMeaning
1EnglishbleepA brief high-pitched sound, as from some...
Every word from Middle English bullEvery word from English Bull