T-boned by a semi is a sexual position where two people form a "T" by a man lying on his side and the partner lying on their back with their legs in the air perpenDICKularly. The man must then enter with a semi-hard dick, thus making the partner "T-boned by a semi."
"Hey, why are you walking so funny today?" "I am in so much pain! I was t-boned by a semi last night!" "Oh no! Are you okay?" "Oh yeah! It was an amazing night! Hopefully I'll be t-boned by a semi again soon."

"Got a bitch drunk last night and afterwards she got t-boned by a semi."
by DICKtionary DICKtators May 9, 2015
Get the T-boned by a semi mug.