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1.
A woman who is so hot all you can think of is having sex with her.
Man, that Heather Locklear is poontastic!
by Tuchdown November 20, 2002
 
2.
Adjective used for describing a woman's vagina which is in immaculate condition and perfectly waxed or shaved as well as clean.
"You know that chick I met the other night? When I took a look downstairs it was poontastic!"
by imperfect faerie June 13, 2006
 
3.
Anyone who is so hot, tan, buff, etc. that all you can think of is having sex with them.
Man, he/she is so poontastic.
by ashley h. February 13, 2006