Taking off from school in order to get work done, miss a test, and/or push back a due date. Similar to playing hooky, the difference being you are actually doing work.
"We had 3 tests and a paper due today, so I took a strategic absence."
When you skip school on a day you have a really big assignment due, such as a project or a report. Can also apply to exams. Very common in high school and secondary school
Dude, the project's due tomorrow, are you done? No man, I'm gonna pull a strategic absence tomorrow to save my ass