fully; squarely; a fullThe repeated form of เต็ม emphasizes completeness or intensity. Depending on context, it can mean completely, directly or squarely (especially for a hit), or a whole/full amount of time or quantity.
TH: ฉันดูหนังเรื่องนี้เต็มๆ แล้วชอบมาก
EN: I watched the whole movie and really liked it.