CATCHY
catchy, attention-getting
(adjective) likely to attract attention; “a catchy title for a movie”
catchy, tricky
(adjective) having concealed difficulty; “a catchy question”; “a tricky recipe to follow”
Source: WordNet® 3.1
Etymology
Adjective
catchy (comparative catchier, superlative catchiest)
Instantly appealing and memorable (of a tune or phrase).
(dated, mostly, figurative) Tending to catch or ensnare; entangling.
(dated) Consisting of, or occurring in, disconnected parts or snatches; changeable.
• Encyc. of Sport
Source: Wiktionary
Catch"y, a.
1. Apt or tending to catch the fancy or attention; catching; taking;
as, catchy music.
2. Tending to catch or insnare; entangling; -- usually used fig.;
as, a catchy question.
3. Consisting of, or occuring in, disconnected parts or snatches;
changeable; as, a catchy wind.
It [the fox's scent] is . . . flighty or catchy, if variable.
Encyc. of Sport.
Source: Webster’s Unabridged Dictionary 1913 Edition