When you miss a half year of school then somehow pass to the next grade.
(Students just recieved their report cards)
Josh: Jim let me see your grades, there is no way you passed this year. You skipped over half the year while you were "sick".
Jim: Here dude check it out, I passed everything, even somehow pulled off a 100 in English.
Josh: Wow, I can't believed you just pulled a Touchette Senior Year!