"Thank goodness!"

• "Man, is it humid in here!"
• Head-shaking comment
• "They almost got me!"
• Swelterer's remark
• "Coulda been worse!"
• Narrow escape exclamation
• "Man, that was close!"
• "Glad that's over"

Douglas Harper's Etymology Dictionary Word definitions in Douglas Harper's Etymology Dictionary
vocalic gesture expressing weariness, etc., attested from c.1600.

Longman Dictionary of Contemporary English Word definitions in Longman Dictionary of Contemporary English
interjection EXAMPLES FROM OTHER ENTRIES ▪ Phew ! I am so glad it's Friday.