Adj. A woman with more than two breasts.
Damn that girl is lumpacious
by VaginalErection January 14, 2014
2 more definitions
Someone who is annoying, disgusting and irritable.
That boy is so lumpacious!
by wilissa12345 February 09, 2014
Its a mix of lumpy and spacious
That is such a lumpacious brick wall!
by cynthiaserv26 January 13, 2014