Originally an old playground toy. Taken as an internet screen name, an anthropopathism of said teeter-totter is accomplished.
With the "see" replaced by a "C", a poetic image of a sea is imposed upon the "teeter-totter as a scale" concept by emphasizing it phonetically. Thus giving it the quality of vastness. Much as the multitudes of meager molecules of water form something as grand as a sea, so the parts of a teeter-totter contrive to bring about a concept of balance and/or transition. When thinking of the metaphores a sea or ocean can conjure, coupled with the set of metaphores a teeter-totter can conjure as well; we are greeted with a universal application of balance or duality or transitions from negative and positive. All done with four letters, at very little cost of breath and breadth.