Excerpted from Cerberus Help Desk Blog.

• noun: "Send this over to JIRA."
• verb: "That's a strange bug, go ahead and JIRA it."
• metaphor: "JIRA's a giant to-do list for the developers."
• present participle: "Be right back I'm JIRA'ing a bug from the forums."
• preterite: "I just saw your post half hour ago, I JIRA'd it already."

Thanks for sharing, Joe! :)

For more funny (and perhaps useful?) definitions of JIRA, here's a post from our archives.