In baseball, when a pitcher throws a slider that doesn't break and hangs in the trike zone. It becomes an easily hitable pitch.

Mercury retrograde is the act of taking a shit whilst mooning one or more human beings. Your day can typically being going well, according to your horoscope, until you are forced into witnessing Mercury retrograde. Performing Mercury retrograde will often speed the astrological cycle forward for the individual performing the Mercury retrograde, bringing about happy and fruitful times to come.

A foul, disgusting, horrible, drink made of a shot of lime juice and another shot of Bailey's Irish Cream.

You drink the lime juice first and hold it in your mouth. You then shot the Bailey's and swish them together in your mouth as though you were using mouthwash.

Within several seconds your mouth will be full of a rancidly textured ball of goop (the "cement"). As a straight male I can't vouch for it but it must be similar to having a mouthful of cum. Swallowing it is even worse.

They are so gross that the clown who buys you one of these is lucky if you don't gob it back in his face.

Better choices can be found in the tags below.

A sex move, especially popular in the south, where a girl holds a mouthful of hot grits in her mouth while performing oral sex on a guy.

an alcoholic drink;
a mixture of lime juice, vodka and bailey's;
when swished inside one's mouth forms a solid texture that is similar to cement mixture;

rough sex in which the man is pumping the woman so hard, that her head goes through the drywall. Then the man blows his load in her hair and mixes it around. When it dries, its hard like cement.

Performing anal sex while the recipient releases diarrhea in a slow, controlled fashion that is timed with each thrust. Traditionally, the partners work together to mix the diarrheal substance into a thick paste, although recipients often allow for the occasional explosion of liquid stool for added flair. Additionally, if the right consistency is attained, the diarrhea acts as a very effective lubricant that is safe for use with most latex condoms. Can easily transition into other maneuvers, such as a Dirty Sanchez or Hot Carl.