When you have a hard-on (big craving) for some Doner, which is a dinner of juicy, crispy shavings of chicken and beef atop a bed of rice, greek style potatoes and salad topped with creamy white garlic sauce and fiery red hot sauce. Sorta like a shawarma dinner plate.
"Oh man I haven't had doner for months, I have a huge doner boner!"
A boner downer is a term which is used to express not only the frustration of being turned off, but also the actuality of losing a boner. A boner downer may occur when something someone says turns your boner or any potential boner limp instantly.
Guy 1: Man you should have been in the child development studies class yesterday! There was this smokin' hot babe in tight yoga pants and you could see right through them!
Guy 2: Shit I can't believe I missed that, I slept through my alarm.
Guy 1: Yeah she was so hot...but then the speaker started talking about teen pregnancy and it was a total boner downer!
John: Dude, since Cindy left last week, I haven't had a good, explosive hard-on.
Joe: I got you covered dude. Have these tapes. They're pretty spicy. They show Jenna Jameson sitting on a dick then standing up, over and over, very rapidly.