The act of inserting cock into another persons gauge piercing.
My girlfriend got all freaky and let me gauge fuck her ear last night. It was incredible!!!
1. When gay men gauge their penis and have sexual intercourse through the gauged hole because no vagina is available.
2. When your getting crunk and your girlfriend has gauged ears and because your drunk and confused you insert your penis in her ear.
1. "hey lets gauge fuck tonight!"
2. "oh my gosh! i got gauged fucked last night at that crazy party!"