A product that is smaller than its usual size.
Jeffy: You're really short.
Jim: I'm not short, I'm fun-sized!
a midget, dwarf, or other little person
The local bar's been no fun since they banned the tossing of fun-sized persons
The sexiest chick you'll ever fucking see, she'll burn your eyes just by looking at her. She's even sexier than Marigold! Her white drooping pussyflaps are the sexiest size. Her nice sweaty pussy fits the just perfect girth and length of your cock, she's perfect. Her white titties are full of fun, she will come home every night from work just to slightly barely unbutten her shirt to show the tops of her tits, she will make you turn on brighter than the fucking sun. Your dick fits in her cleaveage perfectly, just making it the perfect conditions to cum so far in her throat. She will have you dominate you like a country in WW2. She will ride you SO HARD you will shoot your cum up her gaping white butthole like Hitler shooting the Americans. She will dominate you, she wants you, and you... whoever reading this, deserve the world.
Hey Midas, hows your wife, Marigold?
Me: Oh, Her, Yaah, I found myself a fun-sized mommy last night and I fucking owned that pussy like a monopoly plot.
Hmmm... I'm kinda jealous
Me: Oh you... wanna play??
Her: Oh fun! Whadd'ya have?
Me: *lip bites while blushing*
Her: Ohhh... that game... *strips*
Me: My dick will fit! FUCKIN' FIT I MEAN!
Her: OooooOoOooOOooh Daddy harder... Ohhhhh *squirts*
Me: Well I was gonna make a sextape but I nutted so fast it's a gif. Oh well...
basically tiny or small. you usually say this to boys. it will offend them. Asians are small fun sizes are small you get the point
Tommy you have a Asian fun size that nobody wants.
girl: how was that guy last night?
other girl: he has a fun size snicker bar dick!
A girl who is fairly small but has curves in all the right places. A small girl with big boobs and a big ass. Also a very attractive girl, these girls are below 5'5. An example is Mila Kunis.
Adjective for a female of below average height with above average charisma eminating from a love of men with no reservations. She is the Anthony Bourdain of the bedroom.
My Thai friend, Tittyporn, is fun-sized.