Narbonne1944's definitions
When a male/female is in a sexual relationship 'slump' or dry spell, they 'hump' or have intercourse with someone below par.
Tim hasn't gotten laid in over a year, so he's going to slump hump that manish/overweight girl he met at the anti-war demonstration.
by Narbonne1944 July 29, 2012
Get the slump humpmug.