If you tip something up or if it tips up, it moves into a sloping position with one end or side higher than the other.
We had to ~ the bed and the model was in grave danger of falling off it!...
Tip the bottle up so it’s in the same position as it would be when feeding the baby...
The aircraft leveled out, and tipped up again for its climb to 20,000 feet.
PHRASAL VERB: V P n (not pron), V n P, V P