Hetero meaning the liking or preference of the opposite gender. Asexual meaning the satisfaction with oneself.

To be a hetero Asexual can mean the possible definitions:

1. Likes or has preference of the opposite gender or the form of the opposite gender, but doesn’t not care or have a desire to seek a relationship with the opposite gender. Individuals with this type may also exclude female contact, or obtain a disregard or limitation to intimacy or sexuality with the opposite gender.

2. Has interest in the opposite gender’s form, but doesn't care for association with the opposite gender.

3. An individual who obtains a personal interest in the opposite gender, commonly arousal, but has no intention or desire to associate or engage in intimate relations with the opposite gender.

A heterosexual person whose gender aligns with what they were assigned at birth.

Not gay or bisexual, but in between bi and straight. Like, being straight, but you would consider doing something with a member of the same gender should the situation arise. Mainly for pleasure and adventurous reasons, you probably wouldn't date them. Also can be called bent.
It DOESNT mean gay as some people would say it does.

A best friend who is so close, that were they not to match your sexual orientation, you would be married to them. Other sexual orientations may use "homo lifemate" or equivalent.

your closest friend of the same sex, the person you'd be with if you were both homosexual.

A sexuality where you would not have sexual or romantic relationships with someone of the same sex but you can still be attracted to people of the same sex.

The smacking on the back two hetero dudes do after doing something deemed affectionate. A physical version of 'no homo'