In the sentence: I think I just got... an idea!
the ellipsis is most likely used to show:
Select one:
1an unfinished thought.
2a dialogue that ends with silence.
3an omission in a quotation.
4a pause in speech.

Which line in this excerpt from "the love song of j. alfred prufrock" by t. s. eliot uses synecdoche? shall i say, i have gone at dusk through narrow streets and watched the smoke that rises from the pipes of lonely men in shirt-sleeves, leaning out of windows? i should have been a pair of ragged claws scuttling across the floors of silent seas.