An outstandingly attractive pair of breasts.
Guy 1: So what do you think of the new girl?

Guy 2: She's got quite a set on her.

Guy 1: Agreed, to say they're racktacular would be putting it mildly.
by Shandooga McGluckfeez September 07, 2009
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Extremely attractive breasts. Blend of "spectacular" and "rack." Not necessarily linked to size.
See that girl's rack tits boobscansmelonssweaterpuppiesfun bags at the farmer's market?

Yeah, boy. She was racktacular!
by Pervasive D2 October 24, 2010
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