HoFH is a rare but exceedingly aggressive form of FH. If both parents have FH, there is a 25% chance that their child or children will have HoFH (along with a 50% chance that their children will have HeFH). However, if a child is diagnosed with HoFH, that means both parents have some form of FH.
This page provides all possible meanings and translations of the word one-trick pony. Wiktionary(0.00 / 0 votes)Rate this definition: A performing animal (especially a pony) that knows only one trick. A person or group noteworthy for only a single achievement, skill, or characteristic.
have a trick up (one's) sleeve. To have a secret plan, idea, or advantage that can be utilized if and when it is required. A reference to cheating at a card game by hiding a favorable card up one's sleeve. I've got a few tricks up my sleeve if he decides to pursue legal action against me.