n. slang term for a woman's breasts. This has been derived from the term "mammary" which is a gland in the mamalian breast that secretes the hormone prolactin as well as breast milk. The mammaries become especially active during menses and pregnancy as well as while taking atypical antipsychotic medications (Risperdal, Clozaril, Zyprexa, Seroquel) causing what is known as Risperdal Tits.
by Bill Brasky February 2, 2005

by Champy B December 14, 2008

by Deep blue 2012 December 3, 2009

when your 100% sure of something, the "american" way of saying it would be dead-ass. mams would be the European way of the american dead-ass.
An example of using it in a sentence would be, Mark: hey did you finish your test? Matt: mams bro of course I did.
by neozomb April 18, 2020

by Hazza July 14, 2003

Irish word for mother. Used in the east and midlands from about Waterford to Louth, in the countryside. Also ma or mammy.
by Sure I'm Dat Lad June 26, 2012
