When someone is talking bullshit, another people listening may interrupt saying, "Can you smell that?", referring to the imaginary smell of bullshit coming from the original speaker.
A can filled with worms. Often used to describe the feeling of inserting ones genitalia (male) into a vagina where the male is indifferent to a particular vagina.
Man, I can't believe I hit that bitch last night, she was nasty. (Supportive friend) Hey man, can of worms..