Plant that smells like semen? Seriously.

[Blair]

Just out of curiousity, my wife and I have a plant in the front yard of a
house we're renting that smells exactly like, well, male semen. I've heard
other people mention this sort of plant before but I'm not sure what it is
called. It's got tiny purple spiky flowers on it. I'm pretty sure I smelled
it in high concentrations in Greece.

Does anyone know the name of this plant?