colloquially

from WordNet (r) 3.0 (2006)

colloquially
    adv 1: with the use of colloquial expressions; "this building is
           colloquially referred to as The Barn" [syn:
           {colloquially}, {conversationally}, {informally}]

from The Collaborative International Dictionary of English v.0.48

Colloquial \Col*lo"qui*al\, a. [See {Colloqui}.]
   Pertaining to, or used in, conversation, esp. common and
   familiar conversation; conversational; hence, unstudied;
   informal; as, colloquial intercourse; colloquial phrases; a
   colloquial style. -- {Col*lo"qui*al*ly}, adv.
   [1913 Webster]

         His [Johnson's] colloquial talents were, indeed, of the
         highest order.                           --Macaulay.
   [1913 Webster]