Like many of his fellow foreign newcomers, Thimothee knew the competition by name before he arrived at the club - he now knows it by nature.
The Cameroon international missed the third round win against Brighton but he's played in all four ties since as we went to replays against West Brom - where he made his FA Cup debut - and Forest.
Now Thimothee (pictured with a Red Nose for Comic Relief) is relishing the prospect of a return to St James Park - home of his only goal for Spurs, the delightful curler in our 1-0 win in August - and a quarter-final against Newcastle United.
"It's the first time I've played in the competition and it's very special," said Thimothee.
"Before I'd just heard of the FA Cup. I'm impressed. The smaller teams do well and the games against Forest and Brighton have been very difficult."
Thimothee enjoys the one-off nature of cup competition and feels both teams will go for the win on Sunday.
"When you play in the cup it's not like the league," he added. "It's all about that one game and they will come out trying to win because they are playing at home.
"They have a new manager and some new players since we played earlier in the season but we've done well away from home this season and we won't go there thinking about their new manager or players, we know we have quality and we'll go there to win."
It's taken just three rounds for Thimothee Atouba to realise how special the FA Cup is in English football.