sebastic 

One of the coolest kids who is a spastic.

Jordan: Yo beef boi
Seb: IM CHINESE
Dave: stfu, ily, sebastic

sebastic by sebbLz January 20, 2010

sexnastics

Having such a long, wild, athletic sex session with so many positions that you feel like you just got a serious workout at the gym.

Ursula: Wow, girl. You look exhausted. What have you been up to?
Maria: My man just spent the last 12 hours doing naughty sexnastics with me. I need a nap!
Ursula: Now I know why he's in such good shape.

sexnastics by snowl0ver June 18, 2011

sextastic 

adj. to be fantastically sexy; instant orgasm

"OH MY GOD! Franz is so sextastic! I think I just creamed!"

sextastic by The Ashinator February 9, 2007

sextastic 

Something that pretains to have much sexyness and tasticness.

1.Chuck you are looking sextastic today.

sextastic by chuck June 21, 2003

Sextastic 

someone who is sexy and fantastic at the same time

Your sexy and fantastic..your sextastic!

Sextastic by kittyness October 19, 2008

Serastic 

Serastic is the halfway point between being serious and sarcastic.

"Dude, was that sarcastic?"
"No, I was being serastic"

Serastic by teznips April 25, 2010

sextastic 

to describe someone's/something's appearance. Generally implying that it looks so fantastic you would be will to go as far as having sex with it.

"wow Georgie, your hair is looking 'sextastic' today!"

sextastic by alexfair8589 January 8, 2008