Noun.
1) The phone number,
mailing address, or other form of contact information involving digits belonging to a bro, which he may or may not choose to
advertise to potential mates.
2) In the context of a dare or a strongly imposed
suggestion, may apply to the aformentioned contact information belonging to the desired mate. Only used when imposed upon a bro.
1) "Say,
Brantford, can you hook me up with your
broman numerals so I can keep in touch about the latest lax scores?"
2) "I dare say, Farnsworth, the odds of you attaining yonder
beauty's broman numerals are far inferior to the odds of myself completing the same task."