n., Excitement, usually Sexual or romantic, causing a hard on of
the pecker and/or clit and nipples, but it may occur with other forms of thrill-seeking, such as extreme sports, extreme amusement park rides, or
space monkey.
The occurrence of tit as the first syllable of titillation is purely coincidental.
v. form,
titillate.
The road between
Merced Falls and
Hornitos, where it passes around the buttes, has such perfect hills for a
roller coaster ride that little kids get titillation riding in a car driving on it.