My Dad is having some trouble. He has "burned out" his clutch on several occasions. Actually, he has broken his transmission and he has broken his clutch several times. He has memory trouble so he doesn't have any idea what he is doing or not doing.

From his perspective his car has broken and cost a lot of money. He has bought several cars in the last year (which he can't afford) because "they all break". Three clutches stopped working suddenly and now his transmission is "broken".

All my friends are telling me that he is "burning out his clutch".

Exactly how does one "burn out their clutch". I've been driving a stick for decades so I understand the principles.

I just don't know what not to do.

Once I get some visibility on what is causing the problem I can at least tell my Dad what he might be doing wrong. The only thing that comes to mind is that he might be pressing the clutch part way in and then revving the engine. Is that what people mean when they use this phrase?