Top Definition
A mandatory blowjob given to a man on his birthday from his significant other.
1. It's only fitting that a woman give her man a birthjob on his special day. Swallowing is optional, but preferred.

2. I got a killer birthjob from the wife last night!

3. I better get a birthjob tonight or this year will be off to a horrible start.
by andypantsmcd April 15, 2014

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