Definition of slope up:
°An area of ground that tends evenly upward or downward.
"I had to climb a small slope to get to the site."
°The degree to which a surface tends upward or downward.
"The road has a very sharp downward slope at that point."
°To tend steadily upward or downward.
"The road slopes sharply down at that point."
°(colloquial usually followed by a preposition) To try to move
surreptitiously.
"I sloped in through the back door, hoping my boss wouldn't see me."
Definition of slope up:
°An area of ground that tends evenly upward or downward.
"I had to climb a small slope to get to the site."
°The degree to which a surface tends upward or downward.
"The road has a very sharp downward slope at that point."
°To tend steadily upward or downward.
"The road slopes sharply down at that point."
°(colloquial usually followed by a preposition) To try to move
surreptitiously.
"I sloped in through the back door, hoping my boss wouldn't see me."