Pun. Combination of "happiness" and "penis" to get the meaning happiness found in (having) penis...happiness for heterosexual women or homosexual men
Girl: Don't we all want hapenis?
by PornSoldier December 12, 2006
A female orgasm, or excitinf forplay.
He's forplay was bad: breastfeedingly annoying, then he wonders why I never get hapenis.
by Broken Lizzard May 04, 2006