What is Plumbob?
1.
A usually green (can be yellow or red, depending on the Sim), diamond-shaped parallelogram over the head of a Sim character from the two best-selling PC games of all time, The Sims and The Sims 2, that depicts the mood that specific Sim is in.
Sim 1: Hi, I have a green plumbob. I am happy.
Sim 2: Hi, I have a yellow plumbob. I am not too happy, not too sad.
Sim 3: Hi, my plumbob is red and I suggest you fuck off before I rip your asshole apart because I'm angry.
2.
A blow job while hanging completly upside down
Pauls mom gave me a great plumbob last night!
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3.
The act of inserting one or multiple fingers into another's anal cavity.
I jumped in the car with these 3 fat bitches. One of them started plumbobbing me while the other one stole my credit card.
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4.
another word for the male member; a penis
Overheard in conversation between otherwise normal males: "Suck on my plumbob and bite my jelly bean bag."