Acespike is an asexual orientation on the asexual spectrum. It is defined as someone who is usually feels no sexual attraction, but occasionally feel intense sexual feelings for a short amount of time.
Acespike can be a sexual orientation on its own or can combined with other orientations. For example, one could be acespike and gay, meaning that when one does experience sexual attraction it's only towards people of the same gender.
The romantic counterpart to acespike is arospike.