So I was hunting on m-w.com for the definition of a word and accidentally came across this from the list of "Words for Things you Didn't Know had Names":
What is the vertical groove between a person's nose and lip?
If you said philtrum, then you nailed it.
Lots of ways to remember that word.
Try this: The woman threw a tantrum when no one told her before her blind date that she had a milk mustache on her philtrum.
Or what about this obvious memory jogger: The man had a conundrum: he could either stay in his doldrums or go out with the woman who had a milk mustache on her philtrum.
Would've been a no-brainer for me.
And besides the Greek primary meaning of philtrum is "love potion" – "which suggests that seductive powers were attributed to this facial feature." (m-w.com) And to think I've been ignoring that little dip for so long.
Anyway, gussy up your philtrum and see if you can use the word five times during conversations today.
It might get you a date.
Or it might just get you a lot of evil stares from coworkers and friends jealous of that fine looking gap between your nose and lip.