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Bullshit at the microscopic level...a combination of "bullshit" and "proton/neutron/electron". They can be positively, negatively or neutrally charged.
Man, the test that chem lab teacher gave us was some bulltrons.

Them s'mo bulltrons!
by Room308IsThatTruth February 11, 2009
When the power of 5 or more fat-ass whores combine to form the ultimate fat whore--the Bulltron!

Used when yelling out of a car.

Thanks to Paulo for that one.
by CUADIZZLE April 23, 2004