look up any word, like thot:
 
3.
A female who has no tits
"Errr look at tht bitch.. shes a flat top"
by me-iz-cool-club November 18, 2005
 
1.
a hairstyle worn by psychobillies, short on the sides with the top styled upwards and trimmed so that it is flat, hence the name 'flat top'.
"cool,cool,cool flat top yeah" lyrics by horrorpops.

My boyfriend Gareth would love a flat top but his hair's too curly lol
by strawberrycherry September 22, 2008
 
2.
To stay behind in a foreign country while on a work related trip and abandon all of your responsibilities without saying anything to anyone in order to chase a girl only to come home five weeks later to find you no longer have a job and your cat hates you.
He is not on the plane, did Alex say goodbye to anyone? No, he totally flat topped. Well, I hope she isn't pregnant.
by the juggler November 20, 2013