it explains a state of mind that someone is particularlly in at that exact moment.
the state is typically one that is under the influence of alcohol or marijuana. (dancing/singing)
most naperville kids use the term, however the rate it is spreading is particularlly fast.
Person 2- where the party?
Person 1 (on phone with friend)- ya Im a bit daisy and possibley cant drive
Mom (overhearing) - you picked a daisy? Why its winter!
(hence the fact that it is commonly used among teenagers and not adults)