Formed by a combination of the words twink and delicious. It is used as an adjective to describe a very attractive young white male. Twinks tend to be under 25 years old, slim, no body hair, stylish hair and clothing, enjoy clubbing, effeminate and somewhat arrogant. They are also considered to be the ultimate prize for many older gay males, a trophy boyfriend.
Twinkalicious can also be used to describe a situation or setting.
Have you been to the new club downtown? I heard it is twinkalicious. Packed wall to wall with hotties.
Did you see that guy that just walked by? Talk about twinkalicious, he definitely got me hungry.