The word "Tic" has many meanings; it is
used throughout the U.K and various other places.
Usually "Tic" is used to describe an
object or person.
That guy is well tic. ("Tic" meaning either Big,
Hard and somewhat scary. The implications can change by pronunciation and stress in certain parts of the word.)
Tic me that
spliff. ("Tic" in this sense, meaning "Give me that". The implications can change by pronunciation and stress parts of the word.)
That girl was well Tic. ("Tic" meaning beautiful,
hot, attractive; sometimes in addition, can mean scary as well. Again, the implications can change by word stress.)
Wow, Tic! ("Tic" in this context means "Cool" or "Amazing".)