This is a word often used to describe an individual (more specifically a lower-income female from the inner city) that is loud, tacky, boisterous, and not used to the finer things in life.
TaShaNe is truly a tackhead. She went to red lobster and asked in a loud ghetto voice for an order of "scrimp." After that, the tackhead asked "Do ya'll take EBT cards up in here."
12 step recovery jargon referring to someone new who talks about how great life is, now that they'resober. Usually meaning that the person is out of touch with reality.
The new guy seems pretty happy for a dude who has no job, no money and no family. He must be on a pink cloud.