How many times the word irony/ironic is used in the comic.

This one was pretty easy, so here you go!

Irony is mentioned 146 times over the course of the comic (including games), plus 6 times that were from repeat pesterlogs.

Breakdown under the cut!

Dave: 45 mentions (plus 2 repeats)

Dirk: 21 mentions (plus 2 repeats)

Caliborn: 12 mentions

Hal: 11 mentions (one was as ARquiusprite)

Rose: 10 mentions

Jane: 8 mentions

Jake: 6 mentions

John: 6 mentions

Terezi: 5 mentions

Roxy: 4 mentions (plus 2 repeats)

Hussie: 4 mentions

Karkat: 2 mentions

Vriska: 2 mentions

Equius: 2 mentions (plus the aforementioned ARquiusprite one)

Eridan: 2 mentions

Jade: 1 mention

Kanaya: 1 mention

Brobot: 1 mention (in the narration)

Draconian Dignitary: 1 mention

Calliope: 1 mention

Aranea: 1 mention