When a subject and/or class, usually in higher education scientific fields, is so convoluted and hard to follow, that it is impossible for one to succeed in it. This might be due to the professor, or the subject itself. In this case, the subject acts as a filter, preventing you from moving on to more advanced subjects that built upon it.
This can often extend or apply to specific concepts included or related to a subject or class.
In any of the above cases, it is fair to say that one has been filtered.
-Did you understand anything from the previous lecture?
-No, I'm not even sure the professor understands what he's teaching.
-Huh. I guess we've both been filtered.
Touching the filtered end of an unlit cigarette to one's asshole and returning it to the package. Keep an extra pack of these to give to moochers or people you don't like.
Boycealways chuckled to himself as his targets placed the brown filtered cigarettes in their mouths.
Adjective: A term used to describe semen that has been swallowed by the male from which it was ejaculated twice so as to filter it of the impurities.
Jill: How was last night with that random guy, George?
Amanda: It was great! He had a tattoo on his cock that said "thrice filtered" and he never explained what it meant, but his jizz tasted delicious!
Nickname given to bales of marijuana thrown overboard or out of airplanes. Origin is reportedly from members of the US Coast Guard in the area of Southern Florida.
A sunburn or suntan focused on the left arm. It is caused by the left side of the body being the only half that gets exposed to sunlight while driving. Presumably, it would be located on the right side of the body in countries where they drive on the left side of the road.
I had a trucker's tan after driving for 10 straight hours on a sunny day.
British slang for a scientist or technical expert, esp . when the speaker is not certain of the expert’s specific field of study. Not necessarily derogatory, but typically used by persons without a technical background. In the US, the equivalent would be “egghead”, “squint”, or “geek.”
Origin of the word is unknown. Started sometime in World War 2. Given the typical evolution of British slang, could easily have started because what these experts did was confusing or “baffling” to the common person.