suit (one) down to the ground
To be ideal for one. I'm cold all the time, so this hot weather really suits me down to the ground.
suit down to the ground
see under down to the ground.
suit someone down to the ground
BRITISH, INFORMALIf something suits you down to the ground, it is extremely convenient for you. A later meeting would suit me down to the ground. Her new work hours suit her down to the ground.
suit someone or something down to the ground
be extremely convenient or appropriate for a particular person or thing. British informal 1997 Daily Mail Sly's better sense of comic timing suits the tongue-in-cheek script down to the ground.
suit somebody (right) ˌdown to the ˈground
(British English, informal) suit somebody completely: I’ve found a job that suits me down to the ground: the pay’s great and I can work from home.