1creep 
/ˈkri:p/ verb
creeps; crept /ˈkri:p/ verb /ˈkrɛpt/; creep·ing [no obj] 1 : to move slowly with the body close to the ground
▪ A spider was creeping [=crawling] along the bathroom floor. ▪ She crept toward the edge of the roof and looked over. 2 always followed by an adverb or preposition a : to move slowly and quietly especially in order to not be noticed
▪ I caught him creeping down the stairs to the kitchen. ▪ She crept into bed next to her sleeping husband.
b : to go or seem to go very slowly
▪ The hours crept by as we waited for morning. ▪ a train creeping through the town 3 always followed by an adverb or preposition : to appear gradually and in a way that is difficult to notice
▪ The price of gasoline has crept back up to three dollars a gallon. ▪ A few mistakes crept in during the last revision of the paper. ▪ new words creeping into the language 4 of a plant : to grow along the ground or up a surface (such as a tree or wall)
▪ ivy creeping up a wall ▪ a creeping vine 5 Brit, informal + disapproving : to be extremely nice to someone in order to get approval or some advantage for yourself
▪ He's been creeping (up) to the boss for months, so it's no surprise he got a promotion.
▪ A spider was creeping [=crawling] along the bathroom floor. ▪ She crept toward the edge of the roof and looked over.
▪ I caught him creeping down the stairs to the kitchen. ▪ She crept into bed next to her sleeping husband.
b : to go or seem to go very slowly
▪ The hours crept by as we waited for morning. ▪ a train creeping through the town
▪ The price of gasoline has crept back up to three dollars a gallon. ▪ A few mistakes crept in during the last revision of the paper. ▪ new words creeping into the language
▪ ivy creeping up a wall ▪ a creeping vine
▪ He's been creeping (up) to the boss for months, so it's no surprise he got a promotion.
creep out [phrasal verb]
creep (someone) out or creep out (someone) US, informal : to cause (someone) to have an uncomfortable feeling of nervousness or fear : to give (someone) the creeps
▪ That guys really creeps me out. ▪ I felt creeped out being alone in the office at night.
▪ That guys really creeps me out. ▪ I felt creeped out being alone in the office at night.
creep up on [phrasal verb]
creep up on (someone) informal : to slowly and quietly move closer to (someone) without being noticed
▪ We tried to creep up on [=sneak up on] them but they heard our footsteps. — often used figuratively ▪ Old age creeps up on us. ▪ The deadline had crept up on them.
▪ We tried to creep up on [=sneak up on] them but they heard our footsteps. — often used figuratively ▪ Old age creeps up on us. ▪ The deadline had crept up on them.
make your skin/flesh creep
◊If something makes your skin/flesh creep, it causes you to have an uncomfortable feeling of fear or disgust.
▪ The thought of touching that slimy mess makes my skin creep.
▪ The thought of touching that slimy mess makes my skin creep.
