expletive
1. ex.ple.tive \'ek-spl*t-iv, esp Brit ik-'sple--tiv\ aj [LL expletivus,
fr. L expletus, pp. of exple-re to fill ou]t, fr. ex- + ple-re to fill 1:
serving to fill up {~ phrases} 2: marked by the use of expletives
2. expletive n 1a: a syllable, word, or phrase inserted to fill a vacancy
(as in a sentenc e or a metrical line) without adding to the sense; esp : a
word (as it in "it is easy to say so" or "make it clear which you prefer")
that occupies the position of the subject or object of a verb in normal
English word order and anticipates a subsequent word or phrase that
supplies the needed meaningful content 1b: an exclamatory word or phrase;
esp : one that is obscene or pro fane 2: one that serves as a filler